Ccna2 Final

http://www.ccna4u.net/ccna-2-final-exam-v4-0-answers/#more-2109

1.

Refer to the exhibit. Given the topology shown in the exhibit, what three commands are needed to

configure EIGRP on the Paris router? (Choose three.)

Paris(config)# router eigrp 100

Paris(config)# router eigrp

Paris(config-router)# network 192.168.6.0




2. In a lab test environment, a router has learned about network 172.16.1.0 through four different

dynamic routing processes. Which route will be used to reach this network?

D 172.16.1.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Serial0/0/0

O 172.16.1.0/24 [110/1012] via 192.168.200.1, 00:00:22, Serial0/0/0

R 172.16.1.0/24 [120/1] via 192.168.200.1, 00:00:17, Serial0/0/0

I 172.16.1.0/24 [100/1192] via 192.168.200.1, 00:00:09, Serial0/0/0

3. Which routing protocol maintains a topology table separate from the routing table?

IGRP

RIPv1

RIPv2

EIGRP

4. Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two configuration

changes will correct the problem? (Choose two.)

Set a lower priority on R2.

Configure the routers in the same area.

Set a lower cost on R2 compared to R1.

Add a backup designated router to the network.

Match the hello and dead timers on both routers.

5. Which statement is true about the metrics used by routing protocols?

A metric is a value used by a particular routing protocol to compare paths to remote networks.

A common metric is used by all routing protocols.

The metric with the highest value is installed in the routing table.

The router may use only one parameter at a time to calculate the metric.

http://www.ccna4u.net/ccna-2-final-exam-v4-0-answers/#more-2109

6. Refer to the exhibit. Although R2 is configured correctly, host A is unable to access the

Internet. Which two static routes can be configured on R1 to enable Internet connectivity for host

A? (Choose two.)

ip route 0.0.0.0 0.0.0.0 Fa0/0

ip route 0.0.0.0 0.0.0.0 Fa0/1

ip route 0.0.0.0 0.0.0.0 10.1.1.1

ip route 0.0.0.0 0.0.0.0 10.1.1.2

ip route 209.165.202.0 255.255.255.0 10.1.1.1

ip route 209.165.202.0 255.255.255.0 10.1.1.2

7. Refer to the exhibit. Host A is unable to access the Internet. What is the reason for this?

The IP address of host A is incorrect.

The default gateway of host A is incorrect.

The Fa0/1 interfaces of the two routers are configured for different subnets.

The subnet mask for the Fa0/0 interface of R1 is incorrect.

8.

Refer to the exhibit. Two routers are unable to establish an adjacency. What is the possible cause for

this?

The two routers are connected on a multiaccess network.

The hello and dead intervals are different on the two routers.

They have different OSPF router IDs.

They have different process IDs.

9.

Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet network attached to

R3. R1 learned Path A to network 10.2.0.0/16 from a static route and Path B to network 10.2.0.0/16

from EIGRP. Which route will R1 install in its routing table?

Both routes are installed and load balancing occurs across both paths.

The route via Path B is installed because the EIGRP route has the best metric to network 10.2.0.0/16.

The route via Path A is installed because the static route has the best metric to network 10.2.0.0/16.

The route via Path B is installed because the EIGRP route has the lowest administrative distance to network

10.2.0.0/16.

The route via Path A is installed because the static route has the lowest administrative distance to network

10.2.0.0/16.

10. Refer to the exhibit. A ping between the serial interfaces of R1 and R2 is successful, but a ping

between their FastEthernet interfaces fails. What is the reason for this problem?

The FastEthernet interface of R1 is disabled.

One of the default routes is configured incorrectly.

A routing protocol is not configured on both routers.

The default gateway has not been configured on both routers.

11. Which router component is used to store the routing table?

Flash

NVRAM

ROM

SDRAM

12. Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are

undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.

What is the reason for the ping failure?

The serial interface between two routers is down.

R2 is not forwarding the routing updates.

The 192.168.4.0 network is not included in the RIP configuration of R2.

RIPv1 needs to be configured.

13. What two routing protocols use a hierarchal network topology? (Choose two.)

IS-IS

EIGRP

OSPF

RIPv1

RIPv2

14. Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are

both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface

of their neighbor, but they cannot form an EIGRP neighbor adjacency.

What action should be taken to solve this problem?

Enable the serial interfaces of both routers.

Configure EIGRP to send periodic updates.

Configure the same hello interval between the routers.

Configure both routers with the same EIGRP process ID.

15.

Refer to the exhibit. What information can be determined from the highlighted output?

R1 is originating the route 172.30.200.32/28.

Automatic summarization is disabled.

The 172.30.200.16/28 network is one hop away from R1.

A classful routing protocol is being used.

16. Refer to the exhibit. A network administrator wants to reduce the size of the routing table of R1.

Which partial routing table entry in R1 represents the route summary for R2, without including

any additional subnets?

10.0.0.0/16 is subnetted, 1 subnets

D 10.5.0.0[90/205891] via 192.168.1.2, S0/0/0


D 10.5.0.0[90/205198] via 192.168.1.2, S0/0/0


D 10.5.0.0[90/205901] via 192.168.1.2, S0/0/0


D 10.5.0.0[90/205001] via 192.168.1.2, S0/0/0

17.

Refer to the exhibit. All routers are running RIPv1. The two networks 10.1.1.0/29 and 10.1.1.16/29

are unable to access each other. What can be the cause of this problem?

Because RIPv1 is a classless protocol, it does not support this access.

RIPv1 does not support discontiguous networks.

RIPv1 does not support load balancing.

RIPv1 does not support automatic summarization.

18.

Refer to the exhibit. A network administrator has enabled RIP on routers B and C in the network

diagram. Which of the following commands will prevent RIP updates from being sent to Router A?

/>A(config)# router rip

A(config-router)# passive-interface S0/0

B(config)# router rip

B(config-router)# network 192.168.25.48


A(config)# router rip

A(config-router)# no network 192.168.25.32


B(config-router)# passive-interface S0/0

A(config)# no router rip

19. Refer to the exhibit. A network administrator has configured R1 as shown, and all interfaces are

functioning correctly. A ping from R1 to 172.16.1.1 fails. What could be the cause of this problem?

The serial interface on R1 is configured incorrectly.

The default route is configured incorrectly.

The default-information originate command must be issued on R1.

Autosummarization must be disabled on R1.

20. A router has learned two equal cost paths to a remote network via the EIGRP and RIP protocols.

Both protocols are using their default configurations. Which path to the remote network will be

installed in the routing table?

the path learned via EIGRP

the path learned via RIP

the path with the highest metric value

both paths with load balancing

21. Refer to the exhibit. What is the meaning of the highlighted value 2?

It is the administrative distance of the routing protocol.

It is the number of hops between R2 and the 192.168.8.0/24 network.

It is the value used by the DUAL algorithm to determine the bandwidth for the link.

It is the convergence time measured in seconds.

22.

Refer to the exhibit. Based on the output from the show running-config and debug ip rip commands,

what are two of the routes that are added to the routing table of R1? (Choose two.)

R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1

R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0

S 192.168.1.0/24 [1/0] via FastEthernet0/0

R 192.168.9.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/0

R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0

23. Refer to the exhibit. Routers R1 and R3 use different routing protocols with default

administrative distance values. All devices are properly configured and the destination network is

advertised by both protocols.

Which path will be used to transmit the data packets between PC1 and PC2?

The packets will travel via R2-R1.


The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3.

The packets will travel via R2-R3, and the other path via R2-R1 will be retained as the backup path.

24. What are two functions of a router? (Choose two.)

It forwards data packets toward their destination.

It forwards the packet to the destination if the TTL value is 0.

It changes the destination IP address of data packets before forwarding them to an exit interface.

It determines the best path based on the destination MAC address.

It acts as an intersection between multiple IP networks.

25.

Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all

three routers are displayed. All routers are operational and pings are not blocked on this network.

Which ping will fail?

from R1 to 172.16.1.1

from R1 to 192.168.3.1

from R2 to 192.168.1.1

from R2 to 192.168.3.1

26. A network administrator needs to assign the very last usable IP address in the 172.24.64.0/18

network range to the router interface that serves this LAN. Which IP address should the

administrator configure on the interface?

172.16.128.154/18

172.16.255.254/18

172.24.64.254/18

172.24.127.254/18

27. Which two statements are true about the EIGRP successor route? (Choose two.)

It is saved in the topology table for use if the primary route fails.

It may be backed up by a feasible successor route.

It is used by EIGRP to forward traffic to the destination.

It is flagged as active in the routing table.

After the discovery process has occurred, the successor route is stored in the neighbor table.

28. Refer to the exhibit. An administrator is adding a new subnet of 50 hosts to R3. Which subnet

address should be used for the new subnet that provides enough addresses while wasting a minimum

of addresses?

192.168.1.0/24

192.168.1.48 /28

192.168.1.32/27

192.168.1.64/26

29.

Refer to the exhibit. Which statement is true concerning the routing configuration?

Using dynamic routing instead of static routing would have required fewer configuration steps.

The 10.1.1.0/24 and 10.1.2.0/24 routes have adjacent boundaries and should be summarized.

Packets routed to the R2 Fast Ethernet interface require two routing table lookups.

The static route will not work correctly.

30. Refer to the exhibit. Which statement is true about router R2?

The routing table content indicates that interface S0/0/0 is administratively down.

The route for 172.16.1.0 is a static route.

A packet that is destined for a host on the 172.16.3.0 network is forwarded without performing a routing

table lookup.

The packets that are routed to network 172.16.1.0 require two routing table lookups.

31. What command would the network administrator apply to a router that is running OSPF to

advertise the entire range of addresses included in 172.16.0.0/19 in area 0?

R1(config-router)# network 172.16.0.0 0.0.0.255 area 0




32. How does route poisoning prevent routing loops?

New routing updates are ignored until the network has converged.

Failed routes are advertised with a metric of infinity.

A route is marked as unavailable when its Time to Live is exceeded.

The unreachable route is cleared from the routing table after the invalid timer expires.

33. Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of

the show ip rip database command. However, upon running the show ip route command, the

network administrator sees that the router has installed a different route to the 192.168.6.0 network

learned via EIGRP. What could be the reason for the missing RIP route?

Compared to RIP, EIGRP has a lower administrative distance.

Compared to EIGRP, RIP has a higher metric value for the route.

Compared to RIP, the EIGRP route has fewer hops.

Compared to RIP, EIGRP has a faster update timer.

34. Refer to the exhibit. Packets destined to which two networks will require the router to perform a

recursive lookup? (Choose two.)

10.0.0.0/8

64.100.0.0/16

128.107.0.0/16

172.16.40.0/24

192.168.1.0/24

192.168.2.0/24

35. Which statement is true about the RIPv1 protocol?

It is a link-state routing proto

col.

It excludes subnet information from the routing updates.

It uses the DUAL algorithm to insert backup routes into the topology table.

It uses classless routing as the default method on the router.

36. All routers in a network are configured in a single OSPF area with the same priority value. No

loopback interface has been set on any of the routers. Which secondary value will the routers use to

determine the router ID?

The highest MAC address among the active interfaces of the network will be used.

There will be no router ID until a loopback interface is configured.

The highest IP address among the active FastEthernet interfaces that are running OSPF will be used.

The highest IP address among the active interfaces will be used.

37. Refer to the exhibit. Router R2 is configured properly and all interfaces are functional. Router

R1 has been installed recently. Host A is unable to ping host B.

Which procedure can resolve this problem?

Configure a static route on R1 using the IP address of the serial interface on R1.

Configure a default route on R1 with the exit interface Fa0/0 on R1.

Configure a static route on R1 using the IP address of S0/0/0 on R2.

Configure a default route on R1 using the IP address of Fa0/0 on R2.

38. Which three statements describe the operation of routing with EIGRP? (Choose three.)

As new neighbors are discovered, entries are placed in a neighbor table.

If the feasible successor has a higher advertised cost than the current successor route, then it becomes the

primary route.

If hello packets are not received within the hold time, DUAL must recalculate the topology.

The reported distance is the distance to a destination as advertised by a neighbor.

EIGRP maintains full knowledge of the network topology in the topology table and exchanges full routing

information with neighboring routers in every update.

EIGRP builds one routing table that contains routes for all configured routed protocols.

39.

Refer to the exhibit. The network administrator is planning IP addressing of a new network. What

part of this addressing scheme must be changed to allow communication between host A and the

server?

the IP address of the server

the default gateway of host A

the IP address of host A

the default gateway of the server

40. Which two statements are correct about the split horizon with poison reverse method of routing

loop prevention? (Choose two.)

It is enabled by default on all Cisco IOS implementations.

It assigns a value that represents an infinite metric to the poisoned route.

It sends back the poisoned route update to the same interface from where it was received.

It instructs routers to hold all changes that might affect routes, for a specified period of time.

It limits the number of hops a packet can traverse through the network before it is discarded.

41. What are two tasks that must be completed before two routers can use OSPF to form a neighbor

adjacency? (Choose two.)

The routers must elect a designated router.

The routers must agree on the network type.

The routers must use the same dead interval.

The routers must exchange link state requests.

The routers must exchange database description packets.

42. Which two components are used to determine the router ID in the configuration of the OSPF

routing process? (Choose two.)

the IP address of the first FastEthernet interface

the highest IP address of any logical interface

the highest IP address of any physical interface

the default gateway IP address

the priority value of 1 on any physical interface

43. What is the function of the OSPF LSR packet?

It is used to confirm the receipt of LSUs.

It is used to establish and maintain adjacency with other OSPF routers.

It is used by the receiving routers to request more information about any entry in the DBD.

It is used to check the database synchronization between routers.

44. Refer to the exhibit. Which summarization should R1 use to advertise its networks to R2?

192.168.1.0/24

192.168.0.0/24

192.168.0.0/22

192.168.1.0/22

45. Refer to the exhibit. The hosts that are connected to R2 are unable to ping the hosts that are

connected to R1. How can this problem be resolved?

Configure the router ID on both routers.

Configure the R2 router interfaces for area 0.

Configure a loopback interface on both routers.

Configure the proper subnet masks on the router interfaces.

46.

Refer to the exhibit. Which router is advertising subnet 172.16.1.32/28?

Router1

Router2

Router3

Router4

47.

Refer to the exhibit. All router interfaces are configured with an IP address and are operational. If

no routing protocols or static routes are configured, what information will be included in the show ip

route command output for router A?

All of the 192.168.x.0 networks will be in the routing table.

Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in the routing table.

The routing table will be empty because routes and dynamic routes have not been configured.

A default route is automatically installed in the routing table to allow connectivity between the networks.

48. When a router boots, what is the default order to locate the Cisco IOS if there is no boot system

command?

ROM, TFTP server, flash

flash, TFTP server, ROM

flash, NVRAM, TFTP server

NVRAM, TFTP server, flash

49. Which two statements are true for link-state routing protocols? (Choose two.)

Routers that run a link-state protocol can establish a complete topology of the network.

Routers in a multipoint network that run a link-state protocol can exchange routing tables.

Routers use only hop count for routing decisions.

The shortest path first algorithm is used.

Split horizon is used to avoid routing loops.

50. Refer to the exhibit. While trying to diagnose a routing problem in the network, the network

administrator runs the debug ip rip command. What can be determined from the output of this

command?

The router will be unable to ping 192.168.1.2.

The router has two interfaces that participate in the RIP process.

The router will forward the updates for 192.168.1.0 on interface Serial0/0/1.

The router is not originating routes for 172.16.1.0.

51. Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose

three.)

The route to network 172.16.0.0 has an AD of 156160.

Network 192.168.0.16 can best be reached using FastEthernet0/0.

The AD of EIGRP routes has been manually changed to a value other than the default value.

Router1 is running both the EIGRP and OSPF routing process.

Network 172.17.0.0 can only be reached using a defaul

t route.

No default route has been configured.

52. Refer to the exhibit. The 10.4.0.0 network fails. What mechanism prevents R2 from receiving

false update information regarding the 10.4.0.0 network?

split horizon

hold-down timers

route poisoning

triggered updates

53. Which two statements are true regarding link-state routing protocols? (Choose two.)

They are aware of the complete network topology.

They offer rapid convergence times in large networks.

They do not include subnet masks in their routing updates.

They rely on decreasing hop counts to determine the best path.

They do not work well in networks that require special hierarchical designs.

They pass their entire routing tables to their directly connected neighbors only.

54. Refer to the exhibit. What action will R2 take for a packet that is destined for 192.168.2.0?

It will drop the packet.

It will forward the packet via the S0/0/0 interface.

It will forward the packet via the Fa0/0 interface.

It will forward the packet to R1.

55. Which three statements are true regarding the encapsulation and de-encapsulation of packets

when traveling through a router? (Choose three.)

The router modifies the TTL field, decrementing it by one.

The router changes the source IP to the IP of the exit interface.

The router maintains the same source and destination IP.

The router changes the source physical address to the physical address of the exit interface.

The router changes the destination IP to the IP of the exit interface.

The router sends the packet out all other interfaces, besides the one it entered the router on.

56. A router boots and enters setup mode. What is the reason for this?

The IOS image is corrupt.

Cisco IOS is missing from flash memory.

The configuration file is missing from NVRAM.

The POST process has detected hardware failure.

57. Refer to the exhibit. How many routes are ultimate routes?

3

4

5

7

58. Refer to the exhibit. Which two facts can be derived from this output? (Choose two.)

Three network devices are directly connected to Router2.

The serial interface between Router2 and Router3 is up.

Router1 and Router3 are directly connected.

Six devices are up and running on the network.

Layer 3 functionality between routers is configured properly.

59. A network is configured with the IP, IPX, and AppleTalk protocols. Which routing protocol is

recommended for this network?

RIPv1

RIPv2

EIGRP

OSPF

60. Refer to the exhibit. Which two statements are true based on the exhibited output? (Choose two.)

The administrative distance of EIGRP has been set to 50.

All routes are stable.

The show ip eigrp topology command has been run on R1.

The serial interface between the two routers is down.

Each route has one feasible successor.

61. Refer to the exhibit. To implement the RIPv2 protocol, the network administrator runs the

commands as displayed. However, the show ip protocol command fails to display any output. How

can the administrator solve the problem that is indicated by the lack of output from this command?

Include the default-information originate command.

Include the no auto-summary command.

Specify the network for which RIP routing has to be enabled.

Implement RIPv2 authentication in the network.

62.

Refer to the exhibit. The show cdp neighbors command was run at R1. Which two facts about the

newly detected device can be determined from the output? (Choose two.)

ABCD is a router that is connected to R1.

ABCD is a non-CISCO device that is connected to R1.

The device is connected at the Serial0/0/1 interface of R1.

R1 is connected at the S0/0/1 interface of device ABCD.

ABCD does not support switching capability.

63. Refer to the exhibit. The routers are properly configured using a dynamic routing protocol with

default settings, and the network is fully converged. Router A is forwarding data to router E. Which

statement is true about the routing path?

If the network uses the RIP protocol, router A will determine that all paths have equal cost.

If the network uses the RIP protocol, router A will update only the A-C-E path in its routing table.

If the network uses the EIGRP routing protocol, router A will determine that path A-D-E has the lowest

cost.

If both RIP and EIGRP protocols are configured on router A, the router will use the route information that

is learned by the RIP routing protocol.

64. Refer to the exhibit. All interfaces are addressed and functioning correctly. The network

administrator runs the tracert command on host A. Which two facts could be responsible for the

output of this command? (Choose two.)

The entry for 192.168.2.0/24 is missing from the routing table of R1.






65.

Refer to the exhibit. Both routers are using the RIP protocol. Devices on the 192.168.1.1 network can

ping the S0/0/0 interface on R2 but cannot ping devices on the 192.168.2.1 network. What is a

possible cause of this problem?

The routers are configured with different versions of RIP.


The R1 configuration should include the no auto-summary command.

The maximum path number has been exceeded.

66. Refer to the exhibit. R2 is configured correctly. The network administrator has configured R1 as

shown. Which two facts can be deduced from the configuration of R1? (Choose two.)

R1 will forward the route information for subnet 192.168.100.0/30.

The administrative distance has been set to 50 on R1.

R1 will not forward route information for subnet 192.168.100.4.0/30.

R1 will forward the EGRP update for subnet 10.10.10.0/30.

Autosummarization must be enabled.

67. Refer to the exhibit. All routers are properly configured to use the EIGRP routing protocol with

default settings, and the network is fully converged. Which statement correctly describes the path

that the traffic will use from the 10.1.1.0/24 network to the 10.1.2.0/24 network?

It will use the A-D path only.

It will use the path A-D, and the paths A-C-D and A-B-D will be retained as the backup paths.

It will use all the paths equally in a round-robin fashion.

The traffic will be load-balanced between A-B-D and A-C-D.

68. Which two router component and operation pair are correctly described? (Choose two.)

DRAM – loads the bo

otstrap

RAM – stores the operating system

Flash – executes diagnostics at bootup

NVRAM – stores the configuration file

ROM – stores the backup configuration file

POST – runs diagnostics on hardware modules

69. A network administrator uses the RIP routing protocol to implement routing within an

autonomous system. What are two characteristics of this protocol? (Choose two.)

It uses the Bellman-Ford algorithm to determine the best path.

It displays an actual map of the network topology.

It offers rapid convergence in large networks.

It periodically sends complete routing tables to all connected devices.

It is beneficial in complex and hierarchically designed networks.

70. Refer to the exhibit. Which two components are required to complete the configuration? (Choose

two.)

a CSU/DSU device

a DTE device

a DCE device

a crossover cable

a V.35 cable

71. Refer to the exhibit. The output of the show ip route command for router R1 is displayed. What

action will the router take for a packet that is destined for 192.168.1.5?


It will forward the packet to interface Serial0/0/0.

It will determine the route for the packet through a routing protocol.

It will forward the packet to the default gateway.

72. Refer to the exhibit. All routers are running the same routing protocol. Based on the exhibit and

its displayed commands, which statement is true?

Routers B, C, and D have no access to the Internet.

The link to the ISP will be excluded from the routing protocol process.

A default route must be configured on every router.

The wildcard mask is incorrectly configured.

73. Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once

the administrator is connected to the router, which password should the administrator enter at the

R1> prompt to access the privileged EXEC mode?

Cisco001

Cisco123

Cisco789

Cisco901

74. A router has EIGRP configured as the only routing protocol. In what way might EIGRP respond if there

is no feasible successor route to a destination network and the successor route fails?

It broadcasts hello packets to all routers in the network to re-establish neighbor adjacencies.

It sends queries to adjacent neighbors until a new successor route is found.

It immediately sends its entire routing table to its neighbors.

It will set the metric for the failed route to infinity.

---------------------------

Scrib-3135841-Ccna-2-Final-Exam-

1 A company is developing an Internet store for its website. Which protocol should be used to transfer credit card information from customers to the company web server?

FTPS HTTP HTTPS WEP2 TFTP

2 Refer to the exhibit. A new branch office has been added to the corporate network and a new router is to be installed to allow branch office users to access the database server at headquarters. How should the serial 0/0/0 interface of the new branch office router be configured to connect to the headquarters router?

branch_23(config-if)# ip address 192.168.5.19 255.255.255.240branch_23(config-if)# no shutdown branch_23(config-if)# encapsulation hdlcbranch_23(config-if)# ip address 192.168.5.25 255.255.255.240branch_23(config-if)# no shutdownbranch_23(config-if)# encapsulation ppp branch_23(config-if)# no shutdown branch_23(config-if)# encapsulation pppbranch_23(config-if)# ip address 192.168.5.33 255.255.255.240 branch_23(config-if)# encapsulation ppp branch_23(config-if)# ip address 192.168.5.21 255.255.255.240branch_23(config-if)# no shutdown

3Which two commands ensure that any password that permits access to the privileged EXEC mode is not shown in plain text when the configuration files are displayed? (Choose two.)

Router(config)# enable secret cisco Router(config)# enable cisco Router(config)# encryption-password all Router(config)# enable login encrypted

http://255.255.255.240/

http://192.168.5.21/

http://255.255.255.240/

http://192.168.5.33/

http://255.255.255.240/

http://192.168.5.25/

http://255.255.255.240/

http://192.168.5.19/

Router(config)# enable password encryption Router(config)# service password-encryption

4A new network is to be configured on a router. Which of the following tasks must be completed to configure this interface and implement dynamic IP routing for the new network? (Choose three.)

Select the routing protocol to be configured.

Assign an IP address and subnet mask to the interface

Update the ip host configuration information with the device name and new interface IP address. Configure the routing protocol with the new network IP address. Configure the routing protocol with the new interface IP address and subnet mask. Configure the routing protocol in use on all other enterprise routers with the new network information.

5 How does TCP ensure the reliable transfer of data?

if data segments are not received from the source, the destination requests that the segments be resent. If an acknowledgment of the transmitted segments is not received from the destination in a predetermined amount of the time, the source resends the data. TCP uses the SYN-ACK portion of the three-way handshake to ensure that all data has been received. The TCP Protocol Interpreter process verifies the transmitted data at source and destination.

6 A network administrator is asked to design a system to allow simultaneous access to the Internet for 250 users. The ISP for this network can only supply five public IPs. What can be used to accomplish this task?

routable translation dynamic translation static translation port address translation

7What is the most commonly used exterior routing protocol?

BGP RIP OSPF EIGRP

8 Refer to the exhibit. The network administrator needs to configure the router with a name. Which command will the administrator use to configure the router name?

Router# ip hostname Boise Router# enable hostname Boise Router(config-line)# name Boise Router(config)# hostname Boise

Router(config)# ip hostname Boise

9Why are port numbers included in the TCP header of a segment?

to indicate the correct router interface that should be used to forward a segment to identify which switch ports should receive or forward the segment to determine which Layer 3 protocol should be used to encapsulate the data

to enable a receiving host to forward the data to the appropriate application to allow the receiving host to assemble the packet in the proper order

10What is the purpose of the routing process?

to encapsulate data that is used to communicate across a network to select the paths that are used to direct traffic to destination networks

to convert a URL name into an IP address to provide secure Internet file transfer to forward traffic on the basis of MAC addresses

11Which two statements are true about the use of the debug ip rip command on a Cisco router? (Choose two.)

The debug ip rip command displays RIP routing activity in real time. The debug ip rip command can be issued at the user EXEC configuration mode. The debug ip rip command displays a combination of the information that is displayed by the show ip route and show ip protocols commands. Because of router processor usage, the debug ip rip command should be used only when necessary. The debug ip rip command should be used instead of the show ip route command whenever possible.

12What minimum configurations must be set on a host to allow a request to be sent to http://www.cisco.com/? (Choose four.)

DNS server

WINS server IP address

NetBIOS subnet mask

default gateway

13A Catalyst 2960 switch has been taken out of storage to be used as a temporary replacement for another switch that needs to be repaired. About a minute after the switch has started, the SYST LED on the front of the switch transitions from blinking green to amber. What is the meaning of the amber SYST LED?

The switch has no configuration file in NVRAM. The switch has failed POST and must be sent for service. The switch is functioning properly. The switch is in half-duplex mode.

14Refer to the exhibit. Which combination of cables and symbols is correct?

http://www.cisco.com/

A - crossover, B - straight-through, C - straight-through A - crossover, B - rollover, C - straight-through A - straight-through, B -crossover, C - straight-through A - straight-through, B -straight-through, C - straight-through A - straight-through, B - straight-through, C - crossover A - rollover, B - straight-through, C - straight-through

15After an unsuccessful ping to the local router, the technician decides to investigate the router. The technician observes that the lights and fan on the router are not operational. In which layer of the OSI model is the problem most likely occurring?

transport network data link physical

16What are three characteristics of the TCP protocol? (Choose three.)

exchanges datagrams unreliably is used to send IP error messages forces the retransmission of unacknowledged packets creates a virtual session between end-user applications

carries the IP address of the destination host in the TCP header

is responsible for breaking messages into segments and reassembling them at their destination

17Refer to the exhibit. The network shown is connected using services from the same ISP. How will the Fohi router dynamically learn routes to the 192.168.16.16/28, 192.168.16.32/28, and 192.168.16.64/28 subnetworks?

with BGP with a static route

with a directly connected route with an interior routing protocol

http://192.168.16.64/28

http://192.168.16.32/28

http://192.168.16.16/28

18Refer to the exhibit. Which type of UTP cable should be used to connect Host A to Switch1?

rollover console crossover straight-through

19When customers use credit cards to make purchases at a small business, a modem is heard dialing a telephone number to transfer the transaction data to the central office. What type of WAN serial connection is in use?

leased line packet switched circuit switched

point-to-point

20 A user reports being unable to access the Internet. The help desk technician employs a bottom-up approach to troubleshooting. The technician first has the user check the patch cable connection from the PC to the wall, and then has the user verify that the NIC has a green link light. What will the technician have the user do next?

Enter an IP address into the WWW browser address bar to see if DNS is at fault. Use traceroute to identify the device along the path to the ISP that may be at fault. Verify the IP address, subnet, and gateway settings using ipconfig on the PC . Connect to the user home router to check firewall settings for blocked TCP ports.

21 A ping 192.1.1.20 command is issued on workstation A to determine if workstation B can be reached. What events will occur if this command is successful? (Choose two.)

The router will block the ping request message. The router will reply to the echo request with a proxy ping response. Workstation A will send a UDP ping request message to workstation B. Workstation B will send a UDP ping reply message to workstation A. Workstation A will send an ICMP echo request message to workstation B. Workstation B will send an ICMP echo reply message to workstation A.

http://192.1.1.20/

22How does a router know of paths to destination networks? (Choose two.)

inspection of the destination IP address in data packets

ARP requests from connected routers manual configuration of routes updates from other routers DHCP information broadcasts updates from the SMTP management information base

23Refer to the exhibit. Which two statements describe the data conversation shown? (Choose two.)

The data conversation was started by the HTTP application process running on the client.

The data conversation is identified by TCP port 80 on the client. The user started the data conversation by sending an e-mail. The IP address of the Internet server is 192.168.17.43 . The Internet server will send data to port 8547 on the client.

24What is one purpose of the TCP three-way handshake?

sending echo requests from the source to the destination host to establish the presence of the destination determining the IP address of the destination host in preparation for data transfer requesting the destination to transfer a binary file to the source synchronizing sequence numbers between source and destination in preparation for data transfer

25Which type of address is 192.168.17.111/28?

host address network address broadcast address multicast address

http://192.168.17.111/28

http://192.168.17.43/

26A customer reports connectivity problems to an ISP technician. Upon questioning the customer, the technician discovers that all network applications are functioning except for FTP. What should the technician suspect is the problem?

misconfigured firewall

bad port on switch or hub misconfigured IP addressing on the customer's workstation wrong DNS server configured on the customer's workstation wrong default gateway configured on the customer's workstation

27The show ip route command was executed on one of the routers shown in the graphic and the following output was displayed:

C 192.168.4.0/24 is directly connected, Serial0/0R 192.168.5.0/24 [120/1] via 192.168.4.2, 00:00:19, Serial0/0 R 192.168.1.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1R 192.168.2.0/24 [120/2] via 192.168.3.1, 00:00:20, Serial0/1C 192.168.3.0/24 is directly connected, Serial0/1

From which router was this command executed?

A B C D 28Refer to the exhibit. Which two sets of commands are required to configure passwords for all management ports on a Catalyst 2960 switch? (Choose two.)

ALSwitch(config)# interface vlan 1ALSwitch(config-if)# password ciscoALSwitch(config-if)# loginALSwitch(config)# line vty 0 4ALSwitch(config-line)# password cisco

ALSwitch(config-line)# loginALSwitch(config)# line vty 0 15ALSwitch(config-line)# password cisco

http://192.168.3.0/24

http://192.168.3.1/

http://192.168.2.0/24

http://192.168.3.1/

http://192.168.1.0/24

http://192.168.4.2/

http://192.168.5.0/24

http://192.168.4.0/24

ALSwitch(config-line)# loginALSwitch(config)# enable secret classALSwitch(config)# enable password cisco ALSwitch(config)# interface fa0/1ALSwitch(config-if)# password ciscoALSwitch(config-if)# no shutdownALSwitch(config)# line cons 0 ALSwitch(config-line)# password cisco

ALSwitch(config-line)# login

29A user reports being able to access the Internet but not being able to download e-mail from the mail server at the ISP. What should the user check on the user workstation?

the POP3 and SMTP server settings in the e-mail application the patch cable connections at the back of the workstation and at the wall plate the DHCP settings in the operating system the IP address, mask, and default gateway values the NIC drivers

30Refer to the graphic. Which command will configure a static route on Router A to direct traffic from LAN A that is destined for LAN C?

RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.5.2 RouterA(config)# ip route 192.168.4.0 255.255.255.0 192.168.3.2 RouterA(config)# ip route 192.168.5.0 255.255.255.0 192.168.3.2 RouterA(config)# ip route 192.168.3.0 255.255.255.0 192.168.3.1 RouterA(config)# ip route 192.168.3.2 255.255.255.0 192.168.4.0

31Which subnet masks could be used when subnetting a Class B IP address? (Choose two.)

255.255.255.240 255.255.192.0 255.255.0.0

255.192.0.0 240.0.0.0 255.0.0.0

http://255.0.0.0/

http://240.0.0.0/

http://255.192.0.0/

http://255.255.0.0/

http://255.255.192.0/

http://255.255.255.240/

http://192.168.4.0/

http://255.255.255.0/

http://192.168.3.2/

http://192.168.3.1/

http://255.255.255.0/

http://192.168.3.0/

http://192.168.3.2/

http://255.255.255.0/

http://192.168.5.0/

http://192.168.3.2/

http://255.255.255.0/

http://192.168.4.0/

http://192.168.5.2/

http://255.255.255.0/

http://192.168.4.0/

32 Refer to the exhibit. The network administrator has configured the RTA and RTB interfaces. In order to allow hosts that are attached to RTA to reach the server that is attached to RTB, a static route from RTA to the server LAN and a default route from RTB back to RTA need to be configured. Which two commands will the administrator use to accomplish these tasks on the two routers? (Choose two.)

RTA(config)# ip route 10.16.10.5 255.255.255.252 10.16.10.6

RTA(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6 RTA(config)# ip route 10.16.10.96 255.255.255.252 10.16.10.6 RTB(config)# ip route 10.16.10.6 255.255.255.248 10.16.10.6 RTB(config)# ip route 0.0.0.0 0.0.0.0 S0/0/1

RTB(config)# ip route 0.0.0.0 0.0.0.0 10.16.10.6

33How do port filtering and access lists help provide network security?

They prevent specified types of traffic from reaching specified network destinations. They alert network administrators to various type of denial of service attacks as they occur. They prevent viruses, worms, and Trojans from infecting host computers and servers. They enable encryption and authentication of confidential data communications.

34 Refer to the exhibit. The network administrator of the building in the graphic needs to choose the type of cable best suited to add ServerB to the network. Which cable type is the best choice?

STP UTP coaxial fiber optic

35What is used by a routing protocol to determine the best path to include in the routing table?

Convergence time Default distance Metric

http://10.16.10.6/

http://0.0.0.0/

http://0.0.0.0/

http://10.16.10.6/

http://255.255.255.248/

http://10.16.10.6/

http://10.16.10.6/

http://255.255.255.252/

http://10.16.10.96/

http://10.16.10.6/

http://0.0.0.0/

http://0.0.0.0/

http://10.16.10.6/

http://0.0.0.0/

http://0.0.0.0/

http://255.255.255.252/

http://10.16.10.5/

Type of router

36Refer to the exhibit. Which IP addresses could be assigned to the hosts in the diagram? (Choose two.)

192.168.65.31 192.168.65.32 192.168.65.35 192.168.65.60 192.168.65.63 192.168.65.64

37Given the network 192.168.25.0 shown in the graphic, which subnet mask would accommodate the number of hosts in each subnet?

255.255.0.0 255.255.224.0 255.255.255.0 255.255.255.224 255.255.255.240 255.255.255.248

38 Which two protocols allow network devices to report their status and events to a centralized network management device? (Choose two.)

Syslog

Telnet HTTP HTTPS SNMP

39What is true regarding the differences between NAT and PAT?

PAT uses the word "overload" at the end of the access-list statement to share a single registered address.

http://255.255.255.248/

http://255.255.255.240/

http://255.255.255.224/

http://255.255.255.0/

http://255.255.224.0/

http://255.255.0.0/

http://192.168.25.0/

http://192.168.65.64/

http://192.168.65.63/

http://192.168.65.60/

http://192.168.65.35/

http://192.168.65.32/

http://192.168.65.31/

Static NAT allows an unregistered address to map to multiple registered addresses.Dynamic NAT allows hosts to receive the same global address each time external access is required. PAT uses unique source port numbers to distinguish between translations.

40Refer to the exhibit. The graphic shows the output of a command issued on router RTB. According to the output, what two statements are true of router RTB? (Choose two.)

The router is connected to a router named Boise.Router RTB is connected to a Cisco 1841 router.Router RTB is directly connected to two other routers.The IP address of the router interface connected to router RTB is 192.168.2.6 .The RTB router is connected to two Cisco devices by Fast Ethernet links.

41Refer to the exhibit. The network administrator uses the command below to configure a default route to the ISP network :

RTB(config)# ip route 0.0.0.0 0.0.0.0 10.1.1.6

A ping issued from the ISP is successful to router RTB. However, ping echo request packets arrive at a host that is attached to the Fa0/0 interface of RTB, and the replies do not make it back to the ISP router. What will fix this problem?

The ISP must be configured to forward packets from the 192.168.1.0 network. The ip route command needs to be edited so that the next hop address is 10.1.1.5.The ip route command needs to be edited so that the 192.168.1.1 address is the next hop address. The ip route command should be removed from the RTB router configuration.

42 A network technician is using a network management station to gather data about the performance of devices and links within the ISP. Which application layer protocol makes this possible?

SNMPFTPDHCPSMTP

http://192.168.1.1/

http://10.1.1.5/

http://192.168.1.0/

http://10.1.1.6/

http://0.0.0.0/

http://0.0.0.0/

http://192.168.2.6/

43What are two purposes of DNS? (Choose two.)

to dynamically assign IP addressing information to network hoststo simplify the administration of host and default gateway addressing on client computers

to assign TCP port numbers to hosts as part of the data transfer processto resolve human-readable domain names to numeric IP addresses

to replace the static HOSTS file with a more practical dynamic system

44A hacker attempts to reach confidential information that is stored on a server inside the corporate network. A network security solution inspects the entire packet, determines that it is a threat, and blocks the packet from entering the inside network. Which security measure protected the network?

an IDS an IPS a host-based firewall Anti-X software

45 How many host addresses may be assigned on each subnetwork when using the 130.68.0.0 network address with a subnet mask of 255.255.248.0?

30 256 2046 2048 4094 4096

46In an IPv4 environment, what information is used by the router to forward data packets from one interface of a router to another?

destination network addresssource network addresssource MAC addresswell known port destination address

http://255.255.248.0/

http://130.68.0.0/

47 A small tire retailer requires a low-cost WAN connection to its headquarters in order to manage its inventory and process customer sales in real time. Which WAN connection type is best suited to its needs?

SonetT3dialupDSLleased line

48The command copy tftp running-config has been entered on the router. What will this command do?

copy the configuration in RAM to a servercopy the configuration file from a server to RAMcopy the configuration file in NVRAM to RAMcopy the configuration file in NVRAM to a servercopy the configuration file from a server to NVRAM

49Refer to the exhibit. The network administrator needs to configure the Fa0/0 interface of RTB so that hosts from RTA can connect to the server that is attached to RTB. Which two commands will the administrator use to accomplish this task? (Choose two.)

RTB# ip address 192.168.102.98 255.255.255.248RTB(config-if)# ip address 192.168.102.99 255.255.255.252RTB(config)# ip address 192.168.102.97 255.255.255.252RTB(config)# no shutdownRTB(config-if)# no shutdownRTB(config-if)# ip address 192.168.102.97 255.255.255.252

50Refer to the exhibit. A NOC technician at an ISP enters the command shown. What are two reasons to use this command? (Choose two.)

to map the path to 192.168.1.7to test reachability to 192.168.1.7 to locate connectivity problems along the route to 192.168.1.7

http://192.168.1.7/

http://192.168.1.7/

http://192.168.1.7/

http://255.255.255.252/

http://255.255.255.252/

http://192.168.102.97/

http://255.255.255.252/

http://192.168.102.99/

http://255.255.255.248/

http://192.168.102.98/

http://192.168.102.97/

to identify the ISPs that interconnect the NOC with the remote host with the address 192.168.1.7to measure the time that packets take to reach 192.168.1.7 and return to the technician's workstation

-----------

http://192.168.1.7/

http://192.168.1.7/

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Updated: 28 Jun 2010

Most recent CCNA 4 Final AnswersMost recent CCNA 4 Final Answers

Which of the following are primary functions of a router? (Choose two.)

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packet switching

microsegmentation

domain name resolution

path selection

flow control

A network administrator is in charge of two separate networks that share a single building. What device will be required to connect the two networks and add a common connection to the Internet that can be shared?

hub

router

access point

Ethernet switch

A router boots and enters setup mode. What is the reason for this?

The IOS image is corrupt.

Cisco IOS is missing from flash memory.

The configuration file is missing from NVRAM.

The POST process has detected hardware failure.

Refer to the exhibit. A network administrator adds this command to router R1: ip route

192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command?

This route is automatically propagated throughout the network.

The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.

A static route is established.

The traffic for all Class C networks is forwarded to 172.16.1.2.

In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths?

R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial0/1/0

R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial0/0/0

R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial0/0/1

R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial0/1/1

Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)

The router modifies the TTL field, decrementing it by one.


The router maintains the same source and destination IP.

The router changes the source physical address to the physical address of the exit interface.



Refer to the exhibit. Router R1 receives a packet for destination 192.168.1.10. Which route will be preferred for this packet?

through the Fa0/0 interface

through the Fa0/1 interface

through the S0/0/0 interface

through the S0/0/1 interface

Refer to the exhibit. Which two routes are level 1 ultimate routes? (Choose two.)

10.0.0.0

10.1.2.0

10.2.2.0

10.1.1.0

192.168.1.0

192.168.2.0

Which routing protocol by default uses bandwidth and delay to calculate the metric of a route?

RIPv1

RIPv2

OSPF

EIGRP

Which statement is true about the metrics used by routing protocols?

A metric is a value used by a particular routing protocol to compare paths to remote networks.

A common metric is used by all routing protocols.

The metric with the highest value is installed in the routing table.

The router may use only one parameter at a time to calculate the metric.

Refer to the exhibit. A router learns a route to the 192.168.6.0 network, as shown in the output of the show ip rip database command. However, upon running the show ip route command, the network administrator sees that the router has installed a different route to the 192.168.6.0 network learned via EIGRP. What could be the reason for the missing RIP route?

Compared to RIP, EIGRP has a lower administrative distance.

Compared to EIGRP, RIP has a higher metric value for the route.

Compared to RIP, the EIGRP route has fewer hops.

Compared to RIP, EIGRP has a faster update timer.

Refer to the exhibit. RIPv1 has been used as a routing protocol on the network. A new

172.16.2.0/24 network has been added on router R2 and configured under the RIP routing

process. When will R1 converge?

after 13 seconds

after 30 seconds

after 180 seconds

after R1 receives triggered updates from R2

Which two statements are true for link-state routing protocols? (Choose two.)

Routers that run a link-state protocol can establish a complete topology of the network.

Routers in a multipoint network that run a link-state protocol can exchange routing tables.

Routers use only hop count for routing decisions.

The shortest path first algorithm is used.

Split horizon is used to avoid routing loops.

An administrator is configuring Router1 so that it can connect to Router2 by using IP. Which protocol can be used by Router1 to determine the IP address of Router2 when they are directly connected and only Layer 2 connectivity exists between them?

ARP

CDP

ICMP

Telnet

Refer to the exhibit. A device is required to complete the connection between router R1

and the WAN. Which two devices can be used for this? (Choose two.)

a CSU/DSU device

a modem

an Ethernet switch

a hub

a bridge

What can be determined from the output shown in the exhibit? (Choose two.)

Annapolis is a 2611 router that is connected to the S0/0 interface of the Montgomery router.

All of the routers are connected to Montgomery through an Ethernet switch.

Montgomery has Layer 2 connectivity with Cumberland.

Layer 3 connectivity is operational for all of the devices listed in the Device ID column.

An administrator consoled into the Waldorf router can ping the Brant router.

Brant, Fisherman, and Potomac are directly connected to Montgomery.

Refer to the exhibit. Which route in the routing table of R1 will be discarded by its neighboring

router?

192.168.2.0

192.168.3.0

192.168.4.0

192.168.9.0

192.168.10.0

192.168.11.0

Refer to the exhibit. Based on the partial output in the exhibit, why can users establish a

console connection to this router without entering a password?

The login command was not entered on the console line.

The enable password should be an enable secret password.

No username and password combination has been configured.

Console connections cannot be configured to require users to provide passwords.

Refer to the exhibit. An administrator is attempting to configure a router by copying and

pasting the commands that are shown in the exhibit. However, only one of the

FastEthernet interfaces is coming up. What is the problem?

Both interfaces are in the same IP subnet.

FastEthernet0/1 does not have a description.

There can be only one FastEthernet interface enabled on a router at one time.

The administrator did not exit to global configuration mode before configuring

FastEthernet0/1.

Refer to the exhibit. The network administrator has run the following command on R1.

R1(config)# ip route 192.168.2.0 255.255.255.0 172.16.1.2

What is the result of running this command?

Traffic for network 192.168.2.0 is forwarded to 172.16.1.2.

This route is automatically propagated throughout the entire network.

Traffic for all networks is forwarded to 172.16.1.2.

The command invokes a dynamic routing protocol for 192.168.2.0.

Refer to the exhibit. The command ip route 0.0.0.0 0.0.0.0 S0/0/0 is run on router R2.

What are the two results of this command? (Choose two.)

A static route will be updated in the routing table.

The traffic from the Internet will be directed to R2.

The traffic from the source network 172.16.0.0/22 will be blocked.

The route will be specified as the default route for all networks not defined in the

routing table.

All the broadcasts will be forwarded via the S0/0/0 interface of R2.

Refer to the exhibit. All routers are running the same routing protocol. Based on the

exhibit and its displayed commands, which statement is true?

The wildcard mask is incorrectly configured.

A default route must be configured on every router.

Routers B, C, and D have no access to the Internet.

The link to the ISP is not advertised by the routing protocol process.

The command ip route 192.168.2.0 255.255.255.0 172.16.2.2 was entered into the router. After network changes were made, the new next hop for the 192.168.2.0/24 network is 172.16.5.1. What should an administrator do so that the router will use the new next hop to reach the 192.168.2.0 network?

Enter the command clear ip route *.

Lower the administrative distance for the new path to ensure that it is used first.

Negate the original command and enter a new static route with the new next hop.

Nothing. The router will learn of the new next hop and automatically update the route table.

Refer to the exhibit. On the basis of the show running-config output, which option

correctly reflects the routes that will be listed in the R2 routing table?

Refer to the exhibit. Routers 1 and 2 are directly connected over a serial link. Pings are failing between the two routers. What change by the administrator will correct the problem?

Set the encapsulation on both routers to PPP.

Decrease the bandwidth on Serial 0/1/0 on router 2 to 1544.

Change the cable that connects the routers to a crossover cable.

Change the IP address on Serial 0/1/0 on router 2 to 192.168.0.1/30.

Refer to the exhibit. Which combination of network ID and subnet mask can be used to

meet the 24 host requirement of the LAN that is attached to Router3?

192.168.0.0/27

192.168.0.64/26

192.168.0.192/26

192.168.0.192/27

Refer to the exhibit. The networks that are connected to R1 have been summarized for R2 as 192.168.136.0/21. Which packet destination address will R2 forward to R1?

192.168.135.1

192.168.142.1

192.168.144.1

192.168.128.1

A network administrator has been asked to configure a network using a classful IP

addressing scheme. Which statement is true about the IP addressing that will be used?

Classful IP addresses can be used only when static routing is configured in the

network.

Classful IP addresses allow the network/host boundary to occur at any bit in the 32-

bit address.

The subnet mask for classful IP addresses can be determined by the value of the first

octet of the IP address.

Classful IP addresses require the subnet mask to be included in the routing updates

that are propagated by the classful routing protocols.

Which range of IP addresses will be used by RIPv2, EIGRP, and OSPF routing protocols

to send routing advertisements?

How will a router that is configured with a classless routing protocol determine the subnet mask that should be assigned to routes that are learned from neighboring classless routers?

The subnet mask that is included in the routing updates will be used.

The subnet mask of the interface that receives the update will be used.

The subnet mask that is specified in the network command will be used.

The class of the network in the update will determine the subnet mask that is used.

Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes

are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1.

What is the reason for the ping failure?

The serial interface between two routers is down.


The 192.168.4.0 network is not included in the RIP configuration of R2.

RIPv1 needs to be configured.

Refer to the exhibit. When troubleshooting a network, it is important to interpret the

output of various router commands. On the basis of the exhibit, which three statements

are true? (Choose three.)

The missing information for Blank 1 is the command show ip route.

The missing information for Blank 1 is the command debug ip route.

The missing information for Blank 2 is the number 100.


The missing information for Blank 3 is the letter R.

The missing information for Blank 3 is the letter C.

Refer to the exhibit. The network is using the RIPv2 routing protocol. If network 10.0.0.0

goes down, what mechanism will prevent Router1 from advertising false routing

information back to Router2?

triggered updates

poison reverse

holddown timers

split horizon

How does route poisoning prevent routing loops?

New routing updates are ignored until the network has converged.

Failed routes are advertised with a metric of infinity.

A route is marked as unavailable when its Time to Live is exceeded.

The unreachable route is cleared from the routing table after the invalid timer expires.

Refer to the exhibit. R1 and R2 are both configured with RIPv1. Beginning from global configuration mode, what comand or commands will eliminate RIP updates on the Ethernet segment of R2?

R2# configure terminal R2(config)# router rip R2(config-router)# passive-interface FastEthernet0/0

R2# configure terminal R2(config)# passive-interface FastEthernet0/0

R2# passive-interface FastEthernet0/0

R2# configure terminal R2(config)# interface FastEthernet0/0 R2(config-if)# passive-interface FastEthernet0/0

Refer to the exhibit. All routers are configured with RIPv2 active on all interfaces.

Automatic summarization is in effect. Why does the routing table on R3 include the

209.165.200.228/30 network but not the 172.30.1.0/24 and 172.30.2.0/24 networks?

CIDR is required to route supernets.

There is no default gateway configured.

The 172.30.0.0/16 subnets are discontiguous.

RIPv2 cannot route networks with variable subnets.

Refer to the exhibit. The routers in the exhibit are running the EIGRP routing protocol.

What statement is true regarding how packets will travel from the 172.16.1.0/16 network

to the 192.168.200.0/24 network?

The router chooses the first path that it learned and installs only that route in the

routing table.

The router chooses the path with the lowest administrative distance and installs only

that route in the routing table.

The router chooses the highest routing ID based on the advertised network IP

addresses and installs only that route in the routing table.

The router installs all the equal cost paths in the routing table but sends packets out

only one, holding the others in reserve in case the primary route goes down.

The router installs all the equal cost paths in the routing table and performs equal cost

load balancing to send packets out multiple exit interfaces.

Refer to the exhibit. Which two statements are true based on the exhibited output?

(Choose two.)

All routes are stable.

Each route has one feasible successor.

The serial interface between the two routers is down.

The administrative distance of EIGRP has been set to 50.

The show ip eigrp topology command has been run on R1.

Refer to the exhibit. Host A is having problems accessing server A. All routers have the

same EIGRP configuration as router RTR_A. What should be done so that host A can

access server A?

Add the command no auto-summary on all routers.

Change the network statements to include a wildcard mask.

Adjust the EIGRP hello timers to account for the network delay.

Add the command eigrp log-neighbor-changes on all routers.

When would the network administrator use the ip bandwidth-percent eigrp as-number percent command?

when there is a low bandwidth connection

when the connection is on a shared medium

when the connection is serial instead of Ethernet

when the link is always busy

Refer to the exhibit. What information can be determined from the displayed output?

EIGRP packets are waiting to be sent to the neighbors.

The adjacencies between the routers are yet to be established.

The IP address 192.168.10.10 is configured at serial interface S0/0/1 of router R2.

Router R2 is receiving hello packets from a neighbor with the IP address

192.168.10.10 via the R2 S0/0/1 interface.

Refer to the exhibit. What will happen if interface Serial0/0/1 goes down on Router1?

The Dijkstra algorithm will calculate the feasible successor.

DUAL will query neighbors for a route to network 192.168.1.0.

Neighbor 172.16.3.2 will be promoted to the feasible successor.

Traffic destined to the 192.168.1.0 network will be dropped immediately due to lack

of a feasible successor.

Which statement correctly describes a feasible successor in EIGRP?

It is a primary route that is stored in the routing table.

It is a backup route that is stored in the routing table.

It is a primary route that is stored in the topology table.

It is a backup route that is stored in the topology table.

Refer to the exhibit. A network administrator is trying to determine why router JAX has

no OSPF routes in its routing table. All routers are configured for OSPF area 0. From the

JAX router, the administrator is able to ping its connected interfaces and the Fa0/1

interface of the ORL router but no other router interfaces. What is a logical step that the

network administrator should take to troubleshoot the problem?

Reboot the routers.

Change the OSPF process ID on all of the routers to 0.

Check to see if the cable is loose between ORL and JAX.

Check to see if CDP packets are passing between the routers.

Use show and debug commands to determine if hellos are propagating.

Which of the following are required when adding a network to the OSPF routing process

configuration? (Choose three.)

network address

loopback address

autonomous system number

subnet mask

wildcard mask

area ID

Refer to the exhibit. R1 and R2 are unable to establish an adjacency. What two

configuration changes will correct the problem? (Choose two.)

Set a lower priority on R2.

Configure the routers in the same area.

Set a lower cost on R2 compared to R1.

Add a backup designated router to the network.

Match the hello and dead timers on both routers.

A network administrator is analyzing routing update behavior on a network that has both EIGRP and OSPF configured on all routers. Both protocols appear in the output of show ip protocols. However, only EIGRP internal routes appear in the routing tables. Which statement correctly explains the scenario?

The OSPF protocol has a higher cost than EIGRP.

The EIGRP protocol has a lower metric than OSPF.

The EIGRP protocol was configured first on the router.

The EIGRP protocol has a lower administrative distance than OSPF.

Refer to the exhibit. All routers are configured for OSPF area 0. The network

administrator requires that R2 always be the DR and maintain adjacency.

Which two configurations can achieve this? (Choose two.)

Change the OSPF area of R2 to a higher value.

Change the router ID for R2 by assigning the IP address 172.16.30.5/24 to

the Fa0/0 interface.

Change the priority values of the Fa0/0 interfaces of R1 and R3 to 0.

Configure a loopback interface on R2, with an IP address higher than any IP

address on the other routers.

Configure R1 and R3 with an IP address whose value is higher than that of R2.

Refer to the exhibit. A network administrator has configured OSPF using the following command:

network 192.168.1.32 0.0.0.31 area 0

Which router interface will participate in OSPF?

FastEthernet0/0

FastEthernet0/1

Serial0/0/0

Serial0/0/1

Which two statements are true for OSPF Hello packets? (Choose two.)

They are used for dynamic neighbor discovery.

They are used to maintain neighbor relationships.

They are used to determine the complete network topology.

They are used with timers to elect the designated router with the fastest link.

They are used to negotiate correct parameters among neighboring interfaces.

-----------------

Cisco CCNA exploration v 4.0, module 2, Final exam.

1.

Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet

network attached to R3. R1 learned Path A to network 10.2.0.0/16 from a static

route and Path B to network 10.2.0.0/16 from EIGRP. Which route will R1

install in its routing table?


The route via Path B is installed because the EIGRP route has the best metric to

network 10.2.0.0/16.

The route via Path A is installed because the static route has the best metric to

network 10.2.0.0/16.

The route via Path B is installed because the EIGRP route has the lowest

administrative distance to network 10.2.0.0/16.

The route via Path A is installed because the static route has the lowest

administrative distance to network 10.2.0.0/16.

2.

Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The

routes of all three routers are displayed. All routers are operational and pings are not

blocked on this network.

Which ping will fail?

from R1 to 172.16.1.1

from R1 to 192.168.3.1

from R2 to 192.168.1.1

from R2 to 192.168.3.1

3. What are two functions of a router? (Choose two.)

It connects multiple IP networks.

It controls the flow of data via the use of Layer 2 addresses.

It determines the best path to send packets.

It manages the VLAN database.

It increases the size of the broadcast domain


They are aware of the complete network topology.

They offer rapid convergence times in large networks.



They do not work well in networks that require special hierarchical designs.


5. Which two statements are correct about the split horizon with poison reverse method

of routing loop prevention? (Choose two.)

It is enabled by default on all Cisco IOS implementations.

It assigns a value that represents an infinite metric to the poisoned route.

It sends back the poisoned route update to the same interface from where it was

received.

It instructs routers to hold all changes that might affect routes, for a specified

period of time.

It limits the number of hops a packet can traverse through the network before it is

discarded.

6.

Refer to the exhibit.

Which router is advertising subnet 172.16.1.32/28?

Router1

Router2

Router3

Router4

7.

Refer to the

exhibit.

All router interfaces are configured with an IP address and are operational. If

no routing protocols or static routes are configured, what information will be

included in the show ip route command output for router A?


Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in

the routing table.

The routing table will be empty because routes and dynamic routes have not been

configured.

A default route is automatically installed in the routing table to allow connectivity

between the networks.

8. When a router boots, what is the default order to locate the Cisco IOS if there is no

boot system command?

ROM, TFTP server, flash

flash, TFTP server, ROM

flash, NVRAM, TFTP server

NVRAM, TFTP server, flash

9. Which router component is used to store the routing table?

Flash

NVRAM

ROM

SDRAM

10. Which three statements describe the operation of routing with EIGRP? (Choose

three.)

As new neighbors are discovered, entries are placed in a neighbor table.

If the feasible successor has a higher advertised cost than the current successor

route, then it becomes the primary route.

If hello packets are not received within the hold time, DUAL must recalculate the

topology.

The reported distance is the distance to a destination as advertised by a neighbor.

EIGRP maintains full knowledge of the network topology in the topology table and

exchanges full routing information with neighboring routers in every update.

EIGRP builds one routing table that contains routes for all configured routed

protocols.

11. What two routing protocols use a hierarchal network topology? (Choose two.)

IS-IS

EIGRP

OSPF

RIPv1

RIPv2

12.

Refer to the exhibit.All routers are running RIPv1. The two networks

10.1.1.0/29 and 10.1.1.16/29 are unable to access each other. What can be

the cause of this problem?

Because RIPv1 is a classless protocol, it does not support this access.

RIPv1 does not support discontiguous networks.

RIPv1 does not support load balancing.

RIPv1 does not support automatic summarization.

13. What command would the network administrator apply to a router that is running

OSPF to advertise the entire range of addresses included in 172.16.0.0/19 in area 0?





14.

Refer to the exhibit. Which statement is true concerning the routing

configuration?

Using dynamic routing instead of static routing would have required fewer

configuration steps.

The 10.1.1.0/24 and 10.1.2.0/24 routes have adjacent boundaries and should be

summarized.

Packets routed to the R2 Fast Ethernet interface require two routing table

lookups.


15.

Refer to the exhibit. A network administrator has enabled RIP on routers B

and C in the network diagram. Which of the following commands will prevent

RIP updates from being sent to Router A?


A(config-router)# passive-interface S0/0





A(config-router)# no network 192.168.25.32


B(config-router)# passive-interface S0/0


16.

Refer to the exhibit. What information can be determined from the highlighted output?

R1 is originating the route 172.30.200.32/28.


The 172.30.200.16/28 network is one hop away from R1.

A classful routing protocol is being used.

17.

Refer to the exhibit. Given the topology shown in the exhibit, what three

commands are needed to configure EIGRP on the Paris router? (Choose

three.)

Paris(config)# router eigrp 100






18. A network administrator needs to assign the very last usable IP address in the

172.24.64.0/18 network range to the router interface that serves this LAN. Which IP

address should the administrator configure on the interface?

172.16.128.154/18

172.16.255.254/18

172.24.64.254/18

172.24.127.254/18

19.

Refer to the exhibit. Based on the output from the show running-config and

debug ip rip commands, what are two of the routes that are added to the

routing table of R1? (Choose two.)

R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1

R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0

S 192.168.1.0/24 [1/0] via FastEthernet0/0

R 192.168.9.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/0

R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0

20.

Refer

to the exhibit.

The show cdp neighbors command was run at R1. Which two facts about the

newly detected device can be determined from the output? (Choose two.)

ABCD is a router that is connected to R1.

ABCD is a non-CISCO device that is connected to R1.

The device is connected at the Serial0/0/1 interface of R1.

R1 is connected at the S0/0/1 interface of device ABCD.

ABCD does not support switching capability.

21. A network is configured with the IP, IPX, and AppleTalk protocols. Which routing

protocol is recommended for this network?

RIPv1

RIPv2

EIGRP

OSPF

22.


The network administrator is planning IP addressing of a new network. What

part of this addressing scheme must be changed to allow communication

between host A and the server?

the IP address of the server

the default gateway of host A

the IP address of host A

the default gateway of the server

23.

Refer to the exhibit. Two routers are unable to establish an adjacency. What is

the possible cause for this?

The two routers are connected on a multiaccess network.

The hello and dead intervals are different on the two routers.

They have different OSPF router IDs.

They have different process IDs.

24.

Refer

to the exhibit. Both routers are using the RIP protocol. Devices on the

192.168.1.1 network can ping the S0/0/0 interface on R2 but cannot ping

devices on the 192.168.2.1 network. What is a possible cause of this

problem?

The routers are configured with different versions of RIP.


The R1 configuration should include the no auto-summary command.

The maximum path number has been exceeded.

25. A router has EIGRP configured as the only routing protocol. In what way might

EIGRP respond if there is no feasible successor route to a destination network and

the successor route fails?

It broadcasts hello packets to all routers in the network to re-establish neighbor

adjacencies.

It sends queries to adjacent neighbors until a new successor route is found.

It immediately sends its entire routing table to its neighbors.

It will set the metric for the failed route to infinity.

26.


A network administrator is accessing router R1 from the console port. Once

the administrator is connected to the router, which password should the

administrator enter at the R1> prompt to access the privileged EXEC mode?

Cisco001

Cisco123

Cisco789

Cisco901

27. Which two components are used to determine the router ID in the configuration of the

OSPF routing process? (Choose two.)

the IP address of the first FastEthernet interface

the highest IP address of any logical interface

the highest IP address of any physical interface

the default gateway IP address

the priority value of 1 on any physical interface

28.

Refer to the exhibit. Host A is unable to access the Internet, and

troubleshooting has revealed that this is due to an addressing problem. What

is incorrectly configured in this network?

the IP address of the Fa0/0 interface of R1

the subnet mask of the S0/0/0 interface of R1

the IP address of the S0/0/0 interface of R1

the subnet mask of the S0/0/0 interface of R2

29.

Refer to the exhibit. Which of the following could describe the devices labeled

«?» in the graphic? (Choose three.)

DCE

CSU/DSU

LAN switch

modem

hub

30. A static route has been configured on a router. However, the destination network no

longer exists. What should an administrator do to remove the static route from the

routing table?

Change the routing metric for that route.

Nothing. The static route will go away on its own.

Change the administrative distance for that route.

Remove the route using the no ip route command.

31.

Refer to the exhibit. The network administrator issues the command no ip

classless on Router1. What forwarding action will take place on a packet that

is received by Router1 and is destined for host 192.168.0.26?

The packet will be dropped.

The packet will be forwarded to the gateway of last resort.

The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0.

The packet will most closely match the 192.168.0.8 subnet and be forwarded out

Serial 0/1.

32.

Refer to the exhibit. What summary address can Router2 advertise to Router1

to reach the three networks on Routers 3, 4, and 5 without advertising any

public address space or overlapping the networks on Router1?

172.16.0.0/8

172.16.0.0/10

172.16.0.0/13

172.16.0.0/20

172.16.0.0/24

33.

Refer to the exhibit. A new PC was deployed in the Sales network. It was

given the host address of 192.168.10.31 with a default gateway of

192.168.10.17. The PC is not communicating with the network properly. What

is the cause?

The default gateway is incorrect.

The address is in the wrong subnet.

The host address and default gateway are swapped.

192.168.10.31 is the broadcast address for this subnet.

34.

Refer to the exhibit. All interfaces are configured with the correct IP addresses

and subnet masks. OSPF has been configured as the routing protocol. During

troubleshooting, it is determined that hosts on network B can ping the Lo0

interface on R1 but are unable to reach hosts on network A. What is the cause

of the problem?

Routers R1 and R2 have incorrect router IDs configured.

Router R1 is unable to form a neighbor relationship with router R2.

Routers R1 and R2 have been configured in different OSPF areas.

The configuration of router R1 fails to include network A in the OSPF routing

process.

35.

Refer to the exhibit. What action will R2 take for a packet that is destined for

192.168.2.0?.


It will forward the packet via the S0/0/0 interface.

It will forward the packet via the Fa0/0 interface.

It will forward the packet to R1.

36.

Refer to the exhibit. The users on the local network 172.16.1.0/24 complain that they

are unable to connect to the Internet. What step should be taken to remedy the

problem?.

A new static route must be configured on R1 with the R3 serial interface as the

next hop.

A new default route must be configured on R1 with the R3 serial interface as the

next hop.

The default route on R2 should be configured with the R3 serial interface as the

next hop.

The default route on R2 must be replaced with a new static route and the next

hop should be the R1 FastEthernet interface.

37. What does RIP use to reduce convergence time in a larger network?

It uses multicast instead of broadcast to send routing updates.

It reduces the update timer to 15 seconds if there are more than 10 routes.

It uses triggered updates to announce network changes if they happen in between

the periodic updates.

It uses random pings to detect if a pathway is down and therefore is preemptive

on finding networks that are down.

38.

Refer to the exhibit. The network has three connected routers: R1, R2 and R3. The

routes of all three routers are displayed. What can be verified from the output?

R1 and R3 are connected to each other via the S0/0/0 interface.

The IP address of the S0/0/0 interface of R1 is 10.1.1.2.

The IP address of the S0/0/1 interface of R2 is 10.3.3.2.

R2 is connected to the S0/0/1 interface of R3.

39.

Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best

match in the routing table that is shown?

The packet is discarded.

The packet is flooded out all interfaces.

The packet is forwarded via Serial0/0/0.

The packet is forwarded via FastEthernet0/0.

40. What is the function of the OSPF LSR packet?

It is used to confirm the receipt of LSUs.

It is used to establish and maintain adjacency with other OSPF routers.

It is used by the receiving routers to request more information about any entry in

the DBD.

It is used to check the database synchronization between routers.

41.

Refer to the exhibit. The interface addresses and OSPF priorities are configured as

shown. Because of the boot order of the routers, router A is currently the DR and

router B is the BDR. If router A fails and is replaced the next day by a new router,

router D, what OSPF protocol action or actions will happen?

Router D will be elected DR, and router C will become the BDR.

Router D will be elected DR, and router B will remain the BDR.

Router C will become the DR, and router B will become the BDR.

Router B will remain the BDR, and OSPF will function on the segment via the

use of only the BDR.

42. What should be considered when troubleshooting a problem with the establishment

of neighbor relationships between OSPF routers? (Choose two.)

OSPF interval timers mismatch

administrative distance mismatch

interface network type mismatch

no loopback interface configured

gateway of last resort not redistributed

43.

Refer to the exhibit. Which two statements are true based on the exhibited output?

(Choose two.)


The EIGRP routing protocol is being used.

There is one feasible successor in the routing table.

The serial interface S0/0/0 is administratively down.

The router is originating the route to 172.16.1.0/24 via the S0/0/0 interface.

44.

Refer to the exhibit. All routers are properly configured to use the EIGRP routing

protocol with default settings, and the network is fully converged. Which statement

correctly describes the path that the traffic will use from the 10.1.1.0/24 network to

the 10.1.2.0/24 network?

It will use the A-D path only.

It will use the path A-D, and the paths A-C-D and A-B-D will be retained as the

backup paths.

It will use all the paths equally in a round-robin fashion.

The traffic will be load-balanced between A-B-D and A-C-D.

45. Which network design feature requires the deployment of a classless routing

protocol?

private IP addressing

advertising default routes

variable length subnet masks

summarization on major network boundaries

46.

Refer to the exhibit. Routers R1 and R3 use different routing protocols with default

administrative distance values. All devices are properly configured and the

destination network is advertised by both protocols.

Which path will be used to transmit the data packets between PC1 and PC2?



The traffic will be load-balanced between two paths — via R2-R1 and via R2-R3.

The packets will travel via R2-R3, and the other path via R2-R1 will be retained as

the backup path.

47.

Refer to the exhibit. Router R1 is configured as shown in the exhibit. PC1 on

172.16.1.0/24 network can reach the default gateway on R1. The rest of the routers

are configured with the correct IP addresses on the interfaces. Routers R2 and R3 do

not have static or dynamic routing enabled. How far will PC1 be able to successfully

ping?

router R1 Fa0/0 interface

router R1 S0/0/0 interface

router R2 S0/0/0 interface

router R2 Fa0/0 and S0/0/1 interfaces

router R3 Fa0/0 and S0/0/0 interfaces

48.

Refer to the exhibit. A ping between host A and host B is successful, but pings from

host A to operational hosts on the Internet fail. What is the reason for this problem?

The FastEthernet interface of R1 is disabled.

One of the default routes is configured incorrectly.

A routing protocol is not configured on both routers.

The default gateway has not been configured on host A.

49.

Refer to the exhibit. How many routes are child routes?

1

3

4

6

50.

Refer to the exhibit. Hosts on the BOS Fa0/0 LAN are able to ping the Fa0/1 interface

on the JAX router and all interfaces on the BOS and ORL routers. Why would hosts

from the 10.0.0.0/24 network not be able to ping hosts on the Fa0/0 LAN of the JAX

router?

The JAX router has the wrong process ID.

The JAX router needs the network 10.0.0.0 0.0.0.255 area 0 command.


The BOS router needs the network 192.168.3.0 0.0.0.255 area 0 command.

http://www.ccnaexploration.net/2010/12/13/ccna-2-final-exam-answers.html

1. Refer to the exhibit. A new PC was deployed in the Sales network. It was given the host address of

192.168.10.31 with a default gateway of 192.168.10.17. The PC is not communicating with the

network properly. What is the cause?

The address is in the wrong subnet.

***192.168.10.31 is the broadcast address for this subnet.

The default gateway is incorrect.

The host address and default gateway are swapped.

2. Refer to the routing table shown in the exhibit. What is the meaning of the highlighted value 192?

It is the value assigned by the Dijkstra algorithm that designates the number of hops in the network.

It is the value used by the DUAL algorithm to determine the bandwidth for the link.

***It is the metric, which is cost.

It is the administrative distance.

3. Refer to exhibit. Given the topology shown in the exhibit, what three commands are needed to

configure EIGRP on the Paris router? (Choose three.)

***Paris(config)# router eigrp 100


Paris(configrouter)# network 192.168.6.0

***Paris(configrouter)# network 192.168.7.0

***Paris(configrouter)# network 192.168.8.0

Paris(configrouter)# network 192.168.9.0

4. What are three features of CDP? (Choose three.)

***tests Layer 2 connectivity

provides a layer of security

operates a OSI layers 2 and 3

http://www.ccnaexploration.net/2010/12/13/ccna-2-final-exam-answers.html

***enabled by default on each interface

used for debugging Layer 4 connectivity issues

***provides information on directly connected devices that have CDP enabled

5. Refer to the exhibit. What two statements are true based on the output shown? (Choose two.)

the reported distance to network 172.16.1.0 is 2172416

192.168.10.5 and 192.168.10.9 are feasible successors

***neighbors 192.168.10.9 and 192.168.10.5 have auto summary disabled.

***router 3 is load balancing traffic to the 172.16.3.0 network across its serial interfaces.

all interfaces shown on Router3 are in the passive state and will not send EIGRP advertisements

6. Which of the following should be considered when troubleshooting a problem with the

establishment of neighbor relationships between OSPF routers? (Choose three.)

***OSPF interval timers mismatch

gateway of last resort not redistributed

***interface network type mismatch

no loopback interface configured

administrative distance mismatch

***inconsistent authentication configuration

7. Refer to the exhibit. Which three statements are true of the routing table for Router1? (Choose

three.)

The route to network 172.16.0.0 has an AD of 156160.

Network 192.168.0.16 can best be reached using FastEthernet0/0.

***The AD of EIGRP routes has been manually changed to a value other than the default value.

***Router1 is running both the EIGRP and OSPF routing process.

Network 172.17.0.0 can only be reached using a default route.

***No default route has been configured.

8. Refer to the exhibit. The ORL router is unable to form a neighbor relationship with the JAX

router. What is a possible cause of this problem?

Router JAX has the wrong autonomoussystem number.

***The command network 192.168.2.0 is missing from the EIGRP configuration on the JAX router.

Automatic summarization is not disabled on the JAX router.

Router JAX has the wrong IP address on the Fa0/1 interface.

9. Which statement is true regarding routing metrics?

All routing protocols use the same metrics.

EIGRP uses bandwidth as its only metric.

***Routers compare metrics to determine the best route.

The larger metric generally represents the better path.

10. Which three statements are true of holddown timers? (Choose three.)

used by link state routing protocols to prevent routing loops

***prevent update messages from reinstating a route that may have gone bad

***allow routers to still forward packets to destination networks that are in holddown

limit the number of hops a packet can traverse through the network before it is discarded

prevent a router advertising a network through the same interface from which the network was learned

***permit lower metric updates received from any neighboring router to reinstate the route to a possibly

down network

11. A router has learned about a network through static and dynamic routing processes. Which route

will be used to reach network 192.168.168.0?

D 192.168.168.0/24 [90/2195456] via 192.168.200.1, 00:00:09, Ethernet0

O 192.168.168.0/24 [110/1012] via 192.168.200.1, 00:00:22, Ethernet0

R 192.168.168.0/24 [120/1] via 192.168.200.1, 00:00:17, Ethernet0

***S 192.168.168.0/24 [1/0] via 192.168.200.1

12. The Suffolk router is directly connected to the networks shown in the graphic and has a default

route that points to the Richmond router. All interfaces are active and properly addressed. However,

when the workstation on network 172.29.5.0/24 sends a packet to destination address 172.29.198.5, it

is discarded by the Suffolk router. What can be a reason for this result?

The ip classless command is not enabled on the Richmond router.

The route was ignored if the Richmond router did not include the 172.29.198.0/24 network in its routing

updates.

The Richmond router is in a different autonomous system than the Suffolk router.

The ip subnetzero command was not configured on the Suffolk router.

***The ip classless command is not enabled on the Suffolk router.

13. Which three statements are true regarding the encapsulation and deencapsulation of packets

when traveling through a router? (Choose three.)

***The router modifies the TTL field, decrementing it by one.


***The router maintains the same source and destination IP.

***The router changes the source physical address to the physical address of the exit interface.



14. Which of the following are required when adding a network to the OSPF routing process

configuration? (Choose three.)

***network address

loopback address

autonomous system number

subnet mask

***wildcard mask

***area ID

15. Refer to the exhibit. The routers in the exhibit are running the EIGRP routing protocol. What

statement is true regarding how packets will travel from the 172.16.1.0/16 network to the

192.168.200.0/24 network?

The router chooses the first path that it learned and installs only that route in the routing table.

The router chooses the path with the lowest administrative distance and installs only that route in the

routing table.

The router chooses the highest routing ID based on the advertised network IP addresses and installs only

that route in the routing table.

The router installs all the equal cost paths in the routing table but sends packets out only one, holding the

others in reserve in case the primary route goes down.

***The router installs all the equal cost paths in the routing table and performs equal cost load balancing to

send packets out multiple exit interfaces.

16. Which of the following could describe the devices labeled “?” in the graphic? (Choose three.)

***DCE

***CSU/DSU

LAN switch

***Modem

hub

17. Which three statements describe the operation of routing with EIGRP? (Choose three.)

***As new neighbors are discovered, entries are placed in a neighbor table.

If the feasible successor has a higher advertised cost than the current successor route, then it becomes the

primary route.

***If hello packets are not received within the hold time, DUAL must recalculate the topology.

***The reported distance is the distance to a destination as advertised by a neighbor.

EIGRP maintains full knowledge of the network topology in the topology table and exchanges full routing

information with neighboring routers in every update.

EIGRP builds one routing table that contains routes for all configured routed protocols.

18. The network shown in the diagram is having problems routing traffic. It is suspected that the

problem is with the addressing scheme. What is the problem with the addressing used in the

topology?

The address assigned to the Ethernet0 interface of Router1 is a broadcast address for that subnetwork.

***The subnetwork configured on the serial link between Router1 and Router2 overlaps with the

subnetwork assigned to Ethernet0 of Router3.

The subnetwork assigned to the Serial0 interface of Router1 is on a different subnetwork from the address

for Serial0 of Router2.

The subnetwork assigned to Ethernet0 of Router2 overlaps with the subnetwork assigned to Ethernet0 of

Router3.

19. Refer to the exhibit. Packets destined to which two networks will require the router to perform a

recursive lookup? (Choose two.)

***10.0.0.0/8

64.100.0.0/16

128.107.0.0/16

172.16.40.0/24

192.168.1.0/24

***192.168.2.0/24

20. Refer to exhibit. A company network engineer enters the following commands in the

routers:R1(config)# ip route 10.1.1.0 255.255.255.0 192.168.0.2R2(config)# ip route 10.1.2.0

255.255.255.0 192.168.0.1When the engineer enters the show ip route command on R1, the routing

table does not display the static route to the 10.1.1.0 network. All R1 and R2 interfaces are correctly

addressed per the graphic. What is a logical next step that the engineer could take in order to make

the static route display in the routing table in R1?

Enter default routes in R1 and R2.

***Enable the R1 and R2 serial interfaces.

Configure the static route to use an exit interface instead of a nexthop address.

Enter the copy run start command to force the router to recognize the configuration.

21. When the show cdp neighbors command is issued from Router C, which devices will be displayed

in the output?

D, SWH2

A, B, D

SWH1, SWH2

***B, D

SWH1, A, B

A, B, D, SWH1, SWH2

22. Refer to the exhibit. R1 knows two routes, Path A and Path B, to the Ethernet network attached

to R3. R1 learned Path A to network 10.2.0.0/16 from a static route and Path B to network

10.2.0.0/16 from EIGRP. Which route will R1 install in its routing table?


The route via Path B is installed because the EIGRP route has the best metric to network 10.2.0.0/16.

The route via Path A is installed because the static route has the best metric to network 10.2.0.0/16.

The route via Path B is installed because the EIGRP route has the lowest administrative distance to network

10.2.0.0/16.

***The route via Path A is installed because the static route has the lowest administrative distance to

network 10.2.0.0/16.

23. A network administrator has enabled RIP on routers B and C in the network diagram. Which of

the following commands will prevent RIP updates from being sent to Router A?


A(configrouter)# passiveinterface S0/0


B(configrouter)# network 192.168.25.48

B(configrouter)# network 192.168.25.64


A(configrouter)# no network 192.168.25.32

***B(config)# router rip

B(configrouter)# passiveinterface S0/0


24. Refer to the exhibit. The network administrator is testing network connectivity by issuing the

tracert command from host A to host B. Given the exhibited output on host A, what are two possible

routing table issues on the network? (Choose two.)

Router1 is missing a route to the 172.16.0.0 network



***Router2 is missing a route to the 172.16.0.0 network

***Router3 is missing a route to the 10.0.0.0 network


25. Refer to the exhibit. What will happen if interface Serial0/0/1 goes down on Router1?

The Dijkstra algorithm will calculate the feasible successor.

***DUAL will query neighbors for a route to network 192.168.1.0.

Neighbor 172.16.3.2 will be promoted to the feasible successor.

Traffic destined to the 192.168.1.0 network will be dropped immediately due to lack of a feasible

successor.

26. Refer to the exhibit. Pings are failing between HostA and HostB. The network administrator

discovers that Router1 does not have a route to the 172.16.0.0 network. Assuming Router2 is

configured correctly, which two static routes could be configured on Router1 to enable Host A to

reach network 172.16.0.0? (Choose two.)

***ip route 172.16.0.0 255.255.0.0 S0/0

ip route 172.16.0.0 255.255.0.0 S0/1

ip route 172.16.0.0 255.255.0.0 192.168.0.1

***ip route 172.16.0.0 255.255.0.0 192.168.0.2

ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/0

ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/1

27. Refer to the exhibit. The results of the show ip route command are displayed in the graphic for

Router R2. Which route will be selected for a packet with a destination address of 10.1.4.1?

static route to 10.1.0.0/22

RIP route to 10.1.0.0/23

RIP route to 10.1.0.0/24

***0.0.0.0/0 via 192.168.0.1

28. Refer to the exhibit. The network is running the RIP routing protocol. Network 10.0.0.0 goes

down. Which statement is true regarding how the routers in this topology will respond to this event?

Router4 will learn about the failed route 30 seconds later in the next periodic update.

Split horizon will prevent Router4 from fowarding packets to the 10.0.0.0 network until the holddown

timer expires.

Router5 immediately flushes the unreachable route from its routing table.

***Router5 will send Router4 a triggered update with a metric of 16 for network 10.0.0.0.

29. Refer to the exhibit. When troubleshooting a network, it is important to interpret the output of

various router commands. On the basis of the exhibit, which three statements are true? (Choose

three.)

The missing information for Blank 1 is the command show ip route.

***The missing information for Blank 1 is the command debug ip route.


***The missing information for Blank 2 is the number 120.

The missing information for Blank 3 is the letter R.

***The missing information for Blank 3 is the letter C.

30. A network administrator has configured a default route on Router_A but it is not being shared

with adjacent Router_B and the other routers in the OSPF area. Which command will save the

administrator the time and trouble of configuring this default route on Router_B and all of the other

routers in the OSPF area?

Router_A(configrouter)# ospf redistribute defaultroute

Router_B(configrouter)# ospf redistribute defaultroute

***Router_A(configrouter)# defaultinformation originate

Router_B(configrouter)# defaultinformation originate

Router_A(configrouter)# ip ospf updatedefault

Router_B(configrouter)# ip ospf updatedefault

31. Refer to the exhibit. The network administrator issues the command no ip classless on Router1.

What forwarding action will take place on a packet that is received by Router1 and is destined for

host 192.168.0.26?

***The packet will be dropped.

The packet will be forwarded to the gateway of last resort.

The packet will match the 192.168.0.0 network and be forwarded out Serial 0/0.

The packet will most closely match the 192.168.0.8 subnet and be forwarded out Serial 0/1.

32. Refer to the exhibit. A packet enters Router1 with a destination IP of 172.16.28.121. Which

routing table entry will be used to forward this packet to the destination address?

172.16.0.0/16 [1/0] via 192.168.0.1

172.16.0.0/20 [1/0] via 192.168.0.9

***172.16.16.0/20 [1/0] via 192.168.0.17

0.0.0.0/0 is directly connected, Serial0/0/1

33. The network administrator configures the router with the ip route 172.16.1.0 255.255.255.0

172.16.2.2 command. How will this route appear in the routing table?

C 172.16.1.0 is directly connected, Serial0/0

S 172.16.1.0 is directly connected, Serial0/0

C 172.16.1.0 [1/0] via 172.16.2.2

***S 172.16.1.0 [1/0] via 172.16.2.2

34. Using default settings, what is the next step in the router boot sequence after the IOS loads from

flash?

Perform the POST routine.

Search for a backup IOS in ROM.

Load the bootstrap program from ROM.

Load the runningconfig file from RAM.

***Locate and load the startupconfig file from NVRAM.

35. What does RIP use to reduce convergence time in a larger network?

It reduces the update timer to 15 seconds if there are more then 10 routes.

***It uses triggered updates to announce network changes if they happen in between the periodic updates.

It uses random pings to detect if a pathway is down and therefore is preemptive on finding networks that

are down.

It uses multicast instead of broadcast to send routing updates.

36. Refer to the exhibit. What are the effects of the exhibited commands on the router?

All passwords are encrypted.

Only Telnet sessions are encrypted.

***Only the enable password is encrypted.

Only the enable password and Telnet session are encrypted.

Enable and console passwords are encrypted.

37. Refer to the exhibit. What is the most efficient summarization of the routes attached to router

R1?

198.18.0.0/16

***198.18.48.0/21

198.18.32.0/22

198.18.48.0/23

198.18.49.0/23

198.18.52.0/22

38. Refer to the exhibit. All router interfaces are configured with an IP address and are operational.

If no routing protocols or static routes are configured, what information will be included in the show

ip route command output for router A?


***Routes to networks 192.168.1.0/24, 192.168.2.0/24, and 192.168.3.0/24 will be in the routing table.

The routing table will be empty because routes and dynamic routes have not been configured.

A default route is automatically installed in the routing table to allow connectivity between the networks.

39. Refer to the exhibit. How many routes are both level 1 and qualify for use as an ultimate route?

1

***2

3

4

5

6

40. When presented with multiple valid routes to a destination, what criteria does a router use to

determine which routes to add to the routing table?

The router selects the routes with the best metric. All routes that have the same best metric are added to the

routing table.

***The router first selects routes with the lowest administrative distance. The resulting routes are then

prioritized by metric and the routes with the best metric are added to the routing table.

The router selects the routes with the lowest administrative distance. All routes with the same lowest

administrative distance are added to the routing table.

The router installs all routes in the routing table but uses the route with the best metric most when load

balancing.

41. Refer to the exhibit. What summary address can Router2 advertise to Router1 to reach the three

networks on Routers 3, 4, and 5 without advertising any public address space or overlapping the

networks on Router1?

172.16.0.0/8

172.16.0.0/10

***172.16.0.0/13

172.16.0.0/20

172.16.0.0/24

42. What is the purpose of the TTL field within an IP packet header?

clears an unreachable route from the routing table after the invalid timer expires.

prevents regular update messages from inappropriately reinstating a route that may have gone bad.

removes an unreachable route from the routing table after the flush timer expires

***limits the period of time or number of hops a packet can traverse through the network before it should

be discarded.

used to mark the route as unreachable in a routing update that is sent to other routers

43. Refer to the exhibit. Hosts on the BOS Fa0/0 LAN are able to ping the Fa0/1 interface on the JAX

router and all interfaces on the BOS and ORL routers. Why would hosts from the 10.0.0.0/24

network not be able to ping hosts on the Fa0/0 LAN of the JAX router?

The JAX router has the wrong process ID.


***The JAX router needs the network 192.168.3.0 0.0.0.255 area 0 command.

The BOS router needs the network 192.168.3.0 0.0.0.255 area 0 command.

44. What command would the network administrator apply to a router that is running OSPF to

advertise the entire range of addresses included in 172.16.0.0/19 in area 0?




***R1(config-router)# network 172.16.0.0 0.0.31.255 area 0

45. What are two tasks that must be completed before two routers can use OSPF to form a neighbor

adjacency? (Choose two.)

The routers must elect a designated router.

***The routers must agree on the network type.

***The routers must use the same dead interval.

The routers must exchange link state requests.

The routers must exchange database description packets.

46. Refer to the exhibit. Which statement is true concerning the routing configuration?

Using dynamic routing instead of static routing would have required fewer configuration steps.

The 10.1.1.0/24 and 10.1.2.0/24 routes have adjacent boudaries and should be summarized.


***Packets routed to the R2 ethernet interface require two routing table lookups.

47. What can be determined from the output shown in the exhibit? (Choose two.)

Annapolis is a 2611 router that is connected to the S0/0 interface of the Montgomery router.

All of the routers are connected to Montgomery through an Ethernet switch.

***Montgomery has Layer 2 connectivity with Cumberland.

Layer 3 connectivity is operational for all of the devices listed in the Device ID column.

An administrator consoled into the Waldorf router can ping the Brant router.

***Brant, Fisherman, and Potomac are directly connected to Montgomery.

48. What is the function of the OSPF LSU packet?

used to confirm receipt of certain types of OSPF packets

used to establish and maintain adjacency with other OSPF routers

used to request more information about any entry in the BDR

***used to announce new OSPF information and to reply to certain types of requests

49. What is the first step OSPF and ISIS routers take in building a shortest path first database?

***learn about directly connected networks

send hello to discover neighbors and form adjacencies

choose successors and feasible successors to populate the topology table

flood LSPs to all neighbors informing them of all known networks and their link states

50. Refer to the exhibit. All routers in the network are running RIPv2 and EIGRP with default

routing protocol settings and have interfaces configured with the bandwidths that are shown in the

exhibit. Which protocol will be used and how will traffic between the Router1 LAN and Router5

LAN be routed through the network?

RIPv2 will load balance across both paths between Router1 and Router5.

EIGRP will load balance across both paths between Router1 and Router5.

RIPv2 traffic will use the path Router1, Router2, Router5 because it has the least hops.

***EIGRP traffic will use the path Router1, Router3, Router4, Router5 because it has the best metric.

51. Refer to the exhibit. A network administrator is trying to figure out why BOS does not have the

10.0.0.0/24 network in its routing table. All routers are configured for OSPF in area 0. The links

between the routers are operational and the administrator is able to ping between all router

interfaces. What is a logical next step that the network administrator should take to troubleshoot the

problem?

Reboot the routers.

Change the OSPF process ID on all of the routers to 0.

Check to see if the cable is loose between BOS and JAX.

Check to see if CDP packets are passing between the routers.

***Use show and debug commands to determine if hellos are propagating.

52. Refer to the exhibit. The network is using the RIPv2 routing protocol. If network 10.0.0.0 goes

down, what mechanism will prevent Router1 from advertising false routing information back to

Router2?

triggered updates

poison reverse

hold-down timers

***split horizon

53. Which two router component and operation pair are correctly described? (Choose two.)

DRAM loads the bootstrap

RAM stores the operating system

Flash executes diagnostics at boot-up

***NVRAM stores the configuration file

ROM stores the backup configuration file

***POST runs diagnostics on hardware modules

54. Which of the following are primary functions of a router? (Choose two.)

***packet switching

microsegmentation

domain name resolution

***path selection

flow control

55. Refer to the exhibit. Which path will traffic from the 172.16.1.0/24 network take to get to the

10.0.0.0/24 network?

ADC

ABC

***It will load balance the traffic between ADC and ABC

It will send the traffic via ABC, and will use ADC as a backup path only when ABC fails.

56. Refer to the exhibit. Routers 1 and 2 are directly connected over a serial link. Pings are failing

between the two routers. What change by the administrator will correct the problem?

Set the encapsulation on both routers to PPP.

Decrease the bandwidth on Serial 0/1/0 on router 2 to 1544.

Change the cable that connects the routers to a crossover cable.

***Change the IP address on Serial 0/1/0 on router 2 to 192.168.0.1/30.


They do not work well in networks that require special heirarchical designs.

***They are aware of the complete network topology.


***They offer rapid convergence times in large networks.



58. Which three statements about routing protocols are true? (Choose three.)

***OSPF elects designated routers on multiaccess links.

RIP does not support classless routing.

***EIGRP supports unequal cost load balancing.

EIGRP uses broadcast traffic to establish adjacencies with its neighbors.

***RIP does not advertise a route beyond a hop count of 15.

OSPF can convergence more quickly because it can find a feasible successor in its topology table when a

successor route goes down.

http://www.ccnaexamanswers.net/2010/12/03/ccna-4-final-answers-100-guaranteed-updated-dec-2010/

1. Which two statements are true about IPv6 link local addresses? (Choose two.)

They begin with the 2000::/3 prefix.They begin with the FE80::/10 prefix.They are assigned by IANA to an organization.They must be manually configured by the administrator.They are assigned to a host by a stateless autoconfiguration process.

2. Refer to the exhibit. What is another way to represent this IPv6 address?

2031::130F::9C0::130B2031::130F::9C0:0:130B2031:0:130F::9C0::130B2031:0:130F::9C0:0:130B

3. Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from the DHCP server. The output of the debug ip dhcp server command shows “DHCPD: there is no address pool for 192.168.3.17″. What is the problem?

The address 192.168.3.17 address is already in use by Fa0/0.The pool of addresses for the 192Network pool is configured incorrectly.The ip helper-address command should be used on the Fa0/0 interface.The 192.168.3.17 address has not been excluded from the 192Network pool.

4. What will be the result of adding the command ip dhcp excluded-address 10.10.4.1 10.10.4.5 to the configuration of a local router that has been configured as a DHCP server?

Traffic that is destined for 10.10.4.1 and 10.10.4.5 will be dropped by the router.Traffic will not be routed from clients with addresses between 10.10.4.1 and 10.10.4.5.The DHCP server will not issue the addresses ranging from 10.10.4.1 to 10.10.4.5.The router will ignore all traffic that comes from the DHCP servers with addresses 10.10.4.1 and 10.10.4.5.

5. Refer to the exhibit. PC1, PC2, and PC3 are configured with dynamic address assignments. PC2 is assigned an IP address from the DHCP server. What would account for the IP addresses that are currently assigned to PC1 and PC3?

Switch S2 port Fa0/12 is configured for full-duplex.These addresses were included in the DHCP server pools.Router R1 has a misconfigured IP address on interface Fa1/0.R1 interface Fa0/0 is not in the same network as the DHCP server.



R1 interfaces Fa0/0 and Fa1/0 do not include the ip helper-address command.

6. Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. Host A has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when received at R1?

10.1.1.2:8010.1.1.2:1234172.30.20.1:1234172.30.20.1:3333

7. Refer to the exhibit. Which configuration command would result in the output in the exhibit?

ip nat inside source static 10.1.200.254 172.16.76.3ip nat inside source static 10.1.200.254 192.168.0.10ip nat inside source static 172.16.76.3 10.1.200.254ip nat inside source static 172.16.76.3 192.168.0.10ip nat inside source static 192.168.0.10 172.16.76.3ip nat inside source static 192.168.0.10 10.1.200.254

8. At what physical location does the responsibilty for a WAN connection change from the user to the service provider?

demilitarized zone (DMZ)demarcation pointlocal loopcloud

9. Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?

flow controlerror controlauthenticationsynchronous communication

10. Which statement accurately describes a role that is played in establishing a WAN connection?

ISDN and ATM are circuit-switched technologies that are used to establish on demand a path through the service provider network.Data link layer protocols like PPP and HDLC define how data is encapsulated for transmission across a WAN link.A packet-switching network establishes a dedicated circuit between nodes for the duration of the communication session.

Frame Relay switches are normally considered to be customer premises equipment (CPE) and are maintained by local administrators.

11. Which data link layer encapsulation protocol is used by default for serial connections between two Cisco routers?

ATMFrame RelayHDLCPPPSDLC

12. Refer to the exhibit. A network administrator is creating a prototype to verify the new WAN design. However, the communication between the two routers cannot be established. Based on the output of the commands, what can be done to solve the problem?

Replace the serial cable .Replace the WIC on RA.Configure RA with a clock rate command.Issue a no shutdown interface command on RB.

13. Which protocol is used to authenticate connections over serial links securely?

CHAPHDLCSLIPPAP

14. Which statement is true about PAP in the authentication of a PPP session?

PAP uses a two-way handshake.The password is unique and random.PAP conducts periodic password challenges.PAP uses MD5 hashing to keep the password secure.

15. What is an accurate description of CHAP when used with PPP on a serial connection between two routers?

A username and password are sent to the peer router, which replies with an accept or reject message.A username and password are sent to the peer router. If these match the configuration in the peer, the peer in turn provides a username and password to the initiating router.A challenge message is sent to the peer router, which responds with its username and a calculated value based on a shared secret. This value is then compared by the challenger to its own calculations.

An encrypted password is sent to the peer router, which decrypts it and compares it to a shared secret. If the decrypted passwords match, the peer sends the encrypted password back to the initiating router.

16. Refer to the exhibit. Communication between two peers has failed. Based on the output that is shown, what is the most likely cause?

interface resetunplugged cableimproper LMI typePPP negotiation failure

17. When configuring a Frame Relay connection, what is the purpose of Inverse ARP?

to assign a DLCI to a remote peerto disable peer requests from determining local Layer 3 addressesto negotiate LMI encapsulations between local and remote Frame Relay peersto create a mapping of DLCI to Layer 3 addresses that belong to remote peers

18. A company is looking for a WAN solution to connect its headquarters site to four remote sites. What are two advantages that dedicated leased lines provide compared to a shared Frame Relay solution? (Choose two.)

reduced jitterreduced costsreduced latencythe ability to burst above guaranteed bandwidththe ability to borrow unused bandwidth from the leased lines of other customers

19. Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the San Jose router to the DC router?

DLCI 103DLCI 301172.16.1.18172.16.1.19

20. Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?

BEDECIRCBIR

21. When Frame Relay encapsulation is used, what feature provides flow control and exchanges information about the status of virtual circuits?

LCPLMIDLCIInverse ARP

22. Refer to the exhibit. Branch A has a non-Cisco router that is using IETF encapsulation and Branch B has a Cisco router. After the commands that are shown are entered, R1 and R2 fail to establish the PVC. The R2 LMI is Cisco, and the R1 LMI is ANSI. TheLMI is successfully established at both locations. Why is the PVC failing?

The PVC to R1 must be point-to-point.LMI types must match on each end of a PVC.The frame relay PVCs cannot be established between Cisco and non-Cisco routers.The IETF parameter is missing from the frame-relay map ip 10.10.10.1 201 command.

23. Refer to the exhibit. You are a network administrator who has been tasked with completing the Frame Relay topology that interconnects two remote sites. How should the point-to-point subinterfaces be configured on HQ to complete the topology?

HQ(config-subif)# frame-relay map ip 172.16.1.1 301 broadcast on Serial 0/0/0.1HQ(config-subif)# frame-relay map ip 172.16.2.2 302 broadcast on Serial 0/0/0.2HQ(config-subif)# frame-relay map ip 172.16.1.1 103 broadcast on Serial 0/0/0.1HQ(config-subif)# frame-relay map ip 172.16.2.2 203 broadcast on Serial 0/0/0.2HQ(config-subif)# frame-relay interface-dlci 103 on Serial 0/0/0.1HQ(config-subif)# frame-relay interface-dlci 203 on Serial 0/0/0.2HQ(config-subif)# frame-relay interface-dlci 301 on Serial 0/0/0.1HQ(config-subif)# frame-relay interface-dlci 302 on Serial 0/0/0.2

24. Refer to the exhibit. Which statement is true about the Frame Relay connection?

The Frame Relay connection is in the process of negotiation.A congestion control mechanism is enabled on the Frame Relay connection.The “ACTIVE” status of the Frame Relay connection indicates that the network is experiencing congestion.Only control FECN and BECN bits are sent over the Frame Relay connection. No data traffic traverses the link.

25. Which IEEE 802.16 broadband wireless technology allows users to connect to the ISP at speeds comparable to DSL and cable?

Wi-FisatelliteWiMAXMetro Ethernet

26. What are two main components of data confidentiality? (Choose two.)

checksumdigital certificatesencapsulationencryptionhashing

27. Which statement about a VPN is true?

VPN link establishment and maintenance is provided by LCP.DLCI addresses are used to identify each end of the VPN tunnel.VPNs use virtual Layer 3 connections that are routed through the Internet.Only IP packets can be encapsulated by a VPN for tunneling through the Internet.

28. From observing lots of port scans and ping sweeps on the company network, an administrator has determined that an edge router is experiencing an attack. These exploits are examples of what type of network attack?

DoSaccessreconnaissanceman-in-the-middle

29. A network administrator determines that falsified routing information is propagating through the network.What action can be used to address this threat?

Update the IOS images.Change console passwords.Employ end-user authentication.Configure routing protocol authentication.

30. Refer to the exhibit. Which statement is true about the configuration of R1?

The remote session is encrypted.A password is sent in plain text.A connection that is using secure HTTP is enabled.A local username database is used for authentication.

31. What can a network administrator do to recover from a lost router password?

use the copy tftp: flash: commandboot the router to bootROM mode and enter the b command to load the IOS manuallytelnet from another router and issue the show running-config command to view the passwordboot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes

32. Refer to the exhibit. A network administrator is trying to backup the IOS software on R1 to the TFTP server. He receives the error message that is shown in the exhibit, and cannot ping the TFTP server from R1. What is an action that can help to isolate this problem?

Use correct source file name in the command.Verify that the TFTP server software is running.Make sure that there is enough room on the TFTP server for the backup.Check that R1 has a route to the network where the TFTP server resides.

33. Refer to the exhibit. A network administrator is considering updating the IOS on Router1. What version of IOS is currently installed on Router1?

112.4151841

34. Which statement is true about wildcard masks?

A wildcard mask must be created by inverting the subnet mask.A wildcard mask performs the same function as a subnet mask.A wildcard mask of 0.0.0.0 means the address should match exactly.A wildcard mask uses a “1″ to identify IP address bits that must be checked.

35. Which type of ACL will permit traffic inbound into a private network only if an outbound session has already been established between the source and destination?

extendedreflexivestandardtime-based

36. Which variable is permitted or denied by a standard access control list?

protocol typesource IP addresssource MAC address

destination IP addressdestination MAC address

37. A technician is editing and reapplying ACL 115 to a router, what is the result of adding the command access-list 115 permit tcp any 172.16.0.0 0.0.255.255 established to the ACL when it is reapplied to the router?

All traffic that comes from 172.16.0.0/16 will be allowed.All TCP traffic that is destined for 172.16.0.0/16 is permitted.Any SYN packets that are sent to 172.16.0.0/16 will be permitted.Responses to traffic that originates from the 172.16.0.0/16 network are allowed.

38. Refer to the exhibit. The network administrator creates a standard access control list to prohibit traffic from the 192.168.1.0/24 network from reaching the 192.168.2.0/24 network while still permitting Internet access for all networks. On which router interface and in which direction should it be applied?

interface Fa0/0, inboundinterface Fa0/0, outboundinterface Fa0/1, inboundinterface Fa0/1, outbound

39. Which option represents a best practice for applying ACLs?

Named ACLs are less efficient than numbered ACLs.Standard ACLs should be applied inside the core layer.ACLs applied to outbound interfaces use fewer router resources.Extended ACLs should be applied closest to the source that is specified by the ACL.

40. Refer to the exhibit. Which statement correctly describes how Router1 processes an FTP request packet that enters interface S0/0/0, and is destined for an FTP server at IP address 172.16.1.5?

The router matches the incoming packet to the statement that is created by access-list 201 permit ip any any command and allows the packet into the router.The router reaches the end of ACL 101 without matching a condition and drops the packet because there is no statement that was created by access-list 101 permit ip any any command.The router matches the incoming packet to the statement that was created by the access-list 101 permit ip any 172.16.1.0 0.0.0.255 command, ignores the remaining statements in ACL 101, and allows the packet into the router.The router matches the incoming packet to the statement that was created by the access-list 201 deny icmp 172.16.1.0 0.0.0.255 any command, continues comparing the packet to the remaining statements in ACL 201 to ensure that no subsequent statements allow FTP, and then the router drops the packet.

41. A network administrator has moved the company intranet web server from a switch port to a dedicated router interface. How can the administrator determine how this change has affected performance and availability on the company intranet?

Conduct a performance test and compare with the baseline that was established previously.Determine performance on the intranet by monitoring load times of company web pages from remote sites.Interview departmental administrative assistants and determine if they think load time for web pages has improved.Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.

42. Technicians from Company A and Company B are comparing DSL transfer rates at their respective companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. Company A, however, reports higher download speeds than Company B. Which option best explains the reason for Company A having the higher download speeds?

Company A only uses microfilters on branch locations.Company B has a higher volume of POTS voice traffic than does Company A.Company B shares the connection to the DSLAM with a larger number of clients than Company A shares.The length of the local loop between Company A and the CO is shorter than the length of the local loop between Company B and CO.

43. Which characteristic of VPN technology prevents the contents of data communications from being read by unauthorized parties?

QoSlatencyreliabilityconfidentiality

44. A recently patched application server is experiencing response time problems. The network on which the application server is located has been experiencing occasional outages that the network team believes may be related to recent routing changes. Network and application teams have been notified to work on their respective issues. Which statement applies to this situation?

Only results from the software package should be tested as the network is designed to accommodate the proposed software platform.Scheduling will be easy if the network and software teams work independently.It will be difficult to isolate the problem if two teams are implementing changes independently.

Results from changes will be easier to reconcile and document if each team works in isolation.

45. Because of a remote-procedure call failure, a user is unable to access an NFS server. At what layer of the TCP/IP model does this problem occur?

network layerdata link layerphysical layerapplication layer

46. Refer to the exhibit. The corporate network that is shown has been assigned network 172.16.128.0/19 for use at branch office LANs. If VLSM is used, what mask should be used for addressing hosts at Branch4 with minimal waste from unused addresses?

/19/20/21/22/23/24

47. Refer to the exhibit. All devices are configured as shown in the exhibit. PC1 is unable to ping the default gateway. What is the cause of the problem?

The default gateway is in the wrong subnet.STP has blocked the port that PC1 is connected to.Port Fa0/2 on S2 is assigned to the wrong VLAN.S2 has the wrong IP address assigned to the VLAN30 interface.

48. Refer to the exhibit. Results of the show vlan and show vtp status commands for switches S1 and S2 are displayed in the exhibit. VLAN 11 was created on S1. Why is VLAN 11 missing from S2?

There is a Layer 2 loop.The VTP domain names do not match.Only one switch can be in server mode.S2 has a higher spanning-tree priority for VLAN 11 than S1 does.

49. Refer to the exhibit. Routers R1 and R2 have been configured with EIGRP in the same autonomous system. Computers PC1 and PC2 are not able to ping each other. Further investigation has revealed that the route to 192.168.10.0 is missing from the routing table on R2. What is the cause of the problem?

The networks are not correctly summarized.The FastEthernet interfaces on R1 are configured as passive.

The network statements on R2 are incorrectly configured.EIGRP on R1 does not recognize the 192.168.10.0 network.

50. Refer to the exhibit. RIPv2 has been configured on all routers in the network. Routers R1 and R3 have not received any RIP routing updates. What will fix the issue?

Enable RIP authentication on R2.Issue the ip directed-broadcast command on R2.Change the subnet masks to 10.11.12.0/8 and 172.16.40.0/16 on R2.Enable CDP on R2 so that the other routers will receive routing updates.

CCNA 2 Final Exam 2009.

1.Refer to the exhibit. What happens to a packet that has 172.16.0.0/16 as the best match in the routing table that is shown?The packet is discarded. The packet is flooded out all interfaces. The packet is forwarded via Serial0/0/0. The packet is forwarded via FastEthernet0/0.

2.Refer to the exhibit. OSPF is used for the routing protocol and all interfaces are configured with the correct IP addresses and subnet masks. During testing, it is found that router R1 is unable to form an adjacency with R2. What is the cause of this problem? Both routers have been configured with incorrect router IDs. Both routers have been configured in different OSPF areas. Both routers have been configured with an incorrect network type.Both routers have been configured with different hello and dead intervals. 3.Refer to the exhibit. A technician has configured the interfaces on the Router, but upon inspection discovers that interface FastEthernet0/1 is not functioning. Which action will most likely correct the problem with FastEthernet0/1? A clock rate should be added to the interface configuration. The subnet mask should be added to the interface configuration. An interface description needs to be added to the interface configuration.The no shutdown command needs to be added to the interface configuration. 4.Refer to the exhibit. The network is running the RIP routing protocol. Network 10.0.0.0 goes down. Which statement is true regarding how the routers in this topology will respond to this event? Router4 will learn about the failed route 30 seconds later in the next periodic update. Split horizon will prevent Router4 from fowarding packets to the 10.0.0.0 network until the holddown timer expires. Router5 immediately flushes the unreachable route from its routing table.Router5 will send Router4 a triggered update with a metric of 16 for network 10.0.0.0. 5 .Refer to the exhibit. A network administrator adds this command to router R1: ip route 192.168.2.0 255.255.255.0 S0/0/0. What is the result of adding this command? This route is automatically propagated throughout the network. The traffic for network 172.16.1.0 is forwarded to network 192.168.2.0.A static route is established. The traffic for all Class C networks is forwarded to 172.16.1.2.

http://ccna-final-exams.blogspot.com/2009/11/ccna-2-final-exam-2009_06.html

6 .Which phase of the router boot process involves running diagnostics on the hardware components from ROM?performing the POST loading the bootstrap program locating and loading the Cisco IOS software locating and loading the startup configuration file

7.Refer to the exhibit. Pings are failing between HostA and HostB. The network administrator discovers that Router1 does not have a route to the 172.16.0.0 network. Assuming Router2 is configured correctly, which two static routes could be configured on Router1 to enable Host A to reach network 172.16.0.0? (Choose two.)ip route 172.16.0.0 255.255.0.0 S0/0 ip route 172.16.0.0 255.255.0.0 S0/1 ip route 172.16.0.0 255.255.0.0 192.168.0.1ip route 172.16.0.0 255.255.0.0 192.168.0.2 ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/0 ip route 192.168.0.1 172.16.0.0 255.255.0.0 S0/1

8. Which statement is true about the RIPv1 protocol? It is a link-state routing protocol. It excludes subnet information from the routing updates. It uses the DUAL algorithm to insert backup routes into the topology table. It uses classless routing as the default method on the router.

9.Refer to the exhibit. Which combination of IP address and subnet mask can be used on the serial interface of Router2 in order to put the interface in the same network as the serial interface of Router1? IP 172.16.0.18, subnet mask 255.255.255.0 IP 172.16.32.15, subnet mask 255.255.255.240 IP 172.16.0.18, subnet mask 255.255.255.252 IP 172.16.32.18, subnet mask 255.255.255.252

10.Refer to the exhibit. A network administrator is accessing router R1 from the console port. Once the administrator is connected to the router, which password should the administrator enter at the R1> prompt to access the privileged EXEC mode? Cisco001 Cisco123Cisco789 Cisco901

11.Refer to the exhibit. When the show cdp neighbors command is issued from router C, which devices will be displayed in the output?

B, D A, B, D D, SWH-2 SWH-1, A, B SWH-1, SWH-2 A, B, D, SWH-1, SWH-2

12 .What does RIP use to reduce convergence time in a larger network? It uses multicast instead of broadcast to send routing updates. It reduces the update timer to 15 seconds if there are more than 10 routes.It uses triggered updates to announce network changes if they happen in between the periodic updates.It uses random pings to detect if a pathway is down and therefore is preemptive on finding networks that are down.

13 .Which routing protocol by default uses bandwidth and delay to calculate the metric of a route? RIPv1 RIPv2 OSPFEIGRP

14 .Which of the following are required when adding a network to the OSPF routing process configuration? (Choose three.)network address loopback address autonomous system number subnet maskwildcard mask area ID

15.Refer to the exhibit. When troubleshooting a network, it is important to interpret the output of various router commands. On the basis of the exhibit, which three statements are true? (Choose three.)The missing information for Blank 1 is the command show ip route. The missing information for Blank 1 is the command debug ip route. The missing information for Blank 2 is the number 100.The missing information for Blank 2 is the number 120. The missing information for Blank 3 is the letter R.The missing information for Blank 3 is the letter C.

16. How does route poisoning prevent routing loops? New routing updates are ignored until the network has converged.Failed routes are advertised with a metric of infinity. A route is marked as unavailable when its Time to Live is exceeded. The unreachable route is cleared from the routing table after the invalid timer

expires.

17.Refer to the exhibit. Which path will traffic from the 172.16.1.0/24 network take to get to the 10.0.0.0/24 network? ADC ABCIt will load balance the traffic between ADC and ABC It will send the traffic via ABC, and will use ADC as a backup path only when ABC fails.

18 .Refer to the exhibit. The network has three connected routers: R1, R2, and R3. The routes of all three routers are displayed. All routers are operational and pings are not blocked on this network.

Which ping will fail? from R1 to 172.16.1.1from R1 to 192.168.3.1 from R2 to 192.168.1.1 from R2 to 192.168.3.1

19.Refer to the exhibit. What information can be determined from the displayed output? EIGRP packets are waiting to be sent to the neighbors. The adjacencies between the routers are yet to be established. The IP address 192.168.10.10 is configured at serial interface S0/0/1 of router R2.Router R2 is receiving hello packets from a neighbor with the IP address 192.168.10.10 via the R2 S0/0/1 interface.

20.Refer to the exhibit. Which route in the routing table of R1 will be discarded by its neighboring router? 192.168.2.0192.168.3.0 192.168.4.0 192.168.9.0 192.168.10.0 192.168.11.0

21.Refer to exhibit. Given the topology shown in the exhibit, what three commands are needed to configure EIGRP on the Paris router? (Choose three.)Paris(config)# router eigrp 100 Paris(config)# router eigrp Paris(config-router)# network 192.168.6.0Paris(config-router)# network 192.168.7.0 Paris(config-router)# network 192.168.8.0


22 .Which three statements are true regarding the encapsulation and de-encapsulation of packets when traveling through a router? (Choose three.)The router modifies the TTL field, decrementing it by one. The router changes the source IP to the IP of the exit interface.The router maintains the same source and destination IP. The router changes the source physical address to the physical address of the exit interface. The router changes the destination IP to the IP of the exit interface. The router sends the packet out all other interfaces, besides the one it entered the router on.

23. In a complex lab test environment, a router has discovered four paths to 192.168.1.0/24 via the use of the RIP routing process. Which route will be installed in the routing table after the discovery of all four paths? R 192.168.1.0/24 [120/3] via 192.168.110.1, 00:00:17, Serial0/1/0 R 192.168.1.0/24 [120/2] via 192.168.200.1, 00:00:17, Serial0/0/0R 192.168.1.0/24 [120/1] via 192.168.100.1, 00:00:17, Serial0/0/1 R 192.168.1.0/24 [120/4] via 192.168.101.1, 00:00:17, Serial0/1/1

24.Refer to the exhibit. A network administrator has run the show interface command. The output of this command is displayed. What is the first step that is required to make this interface operational? Switch the cable with a known working cable.Issue tXhe no shutdown command on the interface. Configure the interface as a loopback interface. Set the encapsulation for the interface.

25 .A router boots and enters setup mode. What is the reason for this? The IOS image is corrupt. Cisco IOS is missing from flash memory.The configuration file is missing from NVRAM. The POST process has detected hardware failure.

26. Refer to the exhibit. An administrator is adding a new subnet of 50 hosts to R3. Which subnet address should be used for the new subnet that provides enough addresses while wasting a minimum of addresses? 192.168.1.0/24 192.168.1.48 /28 192.168.1.32/27 192.168.1.64/26 27. Refer to the exhibit. Both routers are using the RIPv2 routing protocol and static routes are undefined. R1 can ping 192.168.2.1 and 10.1.1.2, but is unable to ping 192.168.4.1. What is the reason for the ping failure?

The serial interface between two routers is down. R2 is not forwarding the routing updates.The 192.168.4.0 network is not included in the RIP configuration of R2. RIPv1 needs to be configured.

28. Which range of IP addresses will be used by RIPv2, EIGRP, and OSPF routing protocols to send routing advertisements? n/a

29. A static route has been configured on a router. However, the destination network no longer exists. What should an administrator do to remove the static route from the routing table? Change the routing metric for that route. Nothing. The static route will go away on its own. Change the administrative distance for that route.Remove the route using the no ip route command.

30. Refer to the exhibit. Which two routes are child routes? (Choose two.) 10.0.0.010.1.2.0 10.2.2.0 192.168.1.0 192.168.2.0

31. Refer to the exhibit. Routers R1 and R2 are directly connected via their serial interfaces and are both running the EIGRP routing protocol. R1 and R2 can ping the directly connected serial interface of their neighbor, but they cannot form an EIGRP neighbor adjacency. What action should be taken to solve this problem? Enable the serial interfaces of both routers. Configure EIGRP to send periodic updates. Configure the same hello interval between the routers. Configure both routers with the same EIGRP process ID.

32. Refer to the exhibit. What are two of the routes added to the routing table of R1? (Choose two.) R 172.16.1.0/24 [120/1] via 192.168.3.0, 00:00:24, Serial0/0/0 R 192.168.1.0/24 [120/1] via 172.16.2.1, 00:00:24, Serial0/0/1 R 192.168.9.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0 R 192.168.100.0/24 [120/1] via 172.16.1.1, 00:00:24, Serial0/0/0 R 192.168.2.0/24 [120/1] via 172.16.1.2, 00:00:24, Serial0/0/0

33. A router that is using RIPv2 learns of the network 10.10.10.0/24 from

two different neighbors. Which value is used by RIPv2 to select the best path to the network?route metric subnet mask longest match administrative distance

34. Refer to the exhibit. All routers are configured for OSPF area 0. The network administrator requires that R2 always be the DR and maintain adjacency. Which two configurations can achieve this? (Choose two.) Change the OSPF area of R2 to a higher value. Change the router ID for R2 by assigning the IP address 172.16.30.5/24 to the Fa0/0 interface.Change the priority values of the Fa0/0 interfaces of R1 and R3 to 0. Configure a loopback interface on R2, with an IP address higher than any IP address on the other routers. Configure R1 and R3 with an IP address whose value is higher than that of R2.

35. Refer to the exhibit. A network administrator has configured OSPF using the following command: network 192.168.1.32 0.0.0.31 area 0 Which router interface will participate in OSPF? FastEthernet0/0 FastEthernet0/1Serial0/0/0 Serial0/0/1

36. Refer to the exhibit. All interfaces are addressed and functioning correctly. The network administrator runs the tracert command on host A. Which two facts could be responsible for the output of this command? (Choose two.) The gateway for Host A is missing or improperly configured. The gateway for Host B is missing or improperly configured. The entry for 192.168.1.0/24 is missing from the routing table of R1.The entry for 192.168.1.0/24 is missing from the routing table of R2. The entry for 192.168.2.0/24 is missing from the routing table of R1. The entry for 192.168.2.0/24 is missing from the routing table of R2.

37. A network administrator has configured a default route on Router_A but it is not being shared with adjacent Router_B and the other routers in the OSPF area. Which command will save the administrator the time and trouble of configuring this default route on Router_B and all of the other

routers in the OSPF area? Router_A(config-router)# ospf redistribute default-route Router_B(config-router)# ospf redistribute default-route Router_A(config-router)# default-information originate Router_B(config-router)# default-information originate Router_A(config-router)# ip ospf update-default Router_B(config-router)# ip ospf update-default

38. Refer to the exhibit. A device is required to complete the connection between router R1 and the WAN. Which two devices can be used for this? (Choose two.)a CSU/DSU device a modem an Ethernet switch a hub a bridge

39. The command ip route 192.168.2.0 255.255.255.0 172.16.2.2 was entered into the router. After network changes were made, the new next hop for the 192.168.2.0/24 network is 172.16.5.1. What should an administrator do so that the router will use the new next hop to reach the 192.168.2.0 network? Enter the command clear ip route *. Lower the administrative distance for the new path to ensure that it is used first.Negate the original command and enter a new static route with the new next hop. Nothing. The router will learn of the new next hop and automatically update the route table.

40. Refer to the exhibit. Which host has a combination of IP address and subnet mask on the same network as Fa0/0 of Router1? host Ahost B host C host D

41. Refer to the exhibit. What is the meaning of the highlighted value 120? It is the metric that is calculated by the routing protocol. It is the value that is used by the DUAL algorithm to determine the bandwidth for the link. It is the administrative distance of the routing protocol. It is the hold-down time, measured in seconds, before the next update.

42. What is the function of the OSPF LSU packet? used to confirm receipt of certain types of OSPF packets used to establish and maintain adjacency with other OSPF routers used to request more information about any entry in the BDRused to announce new OSPF information and to reply to certain types of requests

43. Refer to the exhibit. Which route will be removed from the routing table if manual EIGRP summarization is disabled the Serial0/0/0 interface of R3? 0.0.0.0/0 172.16.0.0/16 172.16.1.0/24 172.16.3.0/30

44. What command would the network administrator apply to a router that is running OSPF to advertise the entire range of addresses included in 172.16.0.0/19 in area 0? R1(config-router)# network 172.16.0.0 0.0.0.255 area 0 R1(config-router)# network 172.16.0.0 0.0.3.255 area 0 R1(config-router)# network 172.16.0.0 0.0.15.255 area 0 R1(config-router)# network 172.16.0.0 0.0.31.255 area 0

45. Refer to the exhibit. A network engineer has run the show version command on R3. Upon rebooting, R3 does not load the start-up configuration settings. What could be the cause of this problem? There is insufficient NVRAM. There is insufficient flash memory. The configuration register is not configured with the default setting. The system image file is not located in NVRAM.

46. Which two locations can be the source of the Cisco IOS that is used by a router during the bootup process? (Choose two.)flash memory RAMNVRAM TFTP server configuration register

47. Refer to the exhibit. What does the highlighted entry for network 172.30.0.0/16 indicate? Automatic summarization is enabled on R1. The routing table of R2 contains only classful networks. R2 will reject this update. The routing protocol that is configured on both routers is RIPv1.

48. Which routing protocol maintains a topology table separate from the routing table? IGRP RIPv1 RIPv2 EIGRP

49. When would the network administrator use the ip bandwidth-percent eigrp as-number percent command?when there is a low bandwidth connection when the connection is on a shared medium when the connection is serial instead of Ethernet when the link is always busy

50. You have been asked to explain converged networks to a trainee. How would you accurately describe a converged network? A network is converged when all routers have formed an adjacency. A network is converged immediately after a topology change has occurred. A network is converged when all routers flush the unreachable networks from their routing tables.A network is converged after all routers share the same information