16410751 CCNA E3 Final Latest Upd

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CCNA E3 - Final latest (Updated Jun 14 2009)

Jun.14, 2009 in CCNA 3

Tke Assessment - ESwitching Final Exam - CCNA Exploration: LAN Switching and Wireless (Version 4.0)

1Refer to the exhibit. The configuration steps that are listed in the exhibit have been entered in switchS1 via the console. Subsequent attempts to telnet to the switch are not successful. What is causingthe problem?

The switch must be configured with SSH version 1.

The transport input command must specify Telnet access.

The RSA keys must be returned to zero before SSH will permit Telnet access.

The ip domain-name command must also be entered in line configuration mode for the vty lines.

2Refer to the exhibit. How is port Gi1/1 on SWT-A functioning in the spanning-tree topology?

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CCNA E3 - Final latest (Updated Jun 14 2009) | CCNA Exploration 4.0 http://www.ccna4u.info/2009/06/ccna-e3-final-latest-updated-jun-14-200...

1 of 16 6/14/2009 5:55 PM

It is sending and receiving data frames.

It is receiving BPDUs, but not sending data frames.

It is participating in the election process by forwarding the BPDUs it receives.

It is receiving BPDUs and populating the MAC address table, but not sending data.

3 Which parameter is a specific frequency at which a wireless access point will operate?

BSS

WEP

SSID

ad hoc

channel

4

What will be the effect of the command S1# copy system:running-config

TheIOSwill becopiedto theTFTPserver.

The configuration file named tokyo-config will overwrite the startup configuration file on S1.

The running configuration file on S1 will be saved via TFTP to a file named tokyo-config.

The contents of NVRAM on S1 will become the startup configuration file on the tokyoswitch.

5 What identifier in the BPDU creates a unique BID for a switch?

IP address

MAC address

bridge priority

VLAN ID

port priority

6Refer to the exhibit. A wireless infrastructure has been established in a company building as shown.The design goal was to allow roaming between the three APs for handheld devices. However, thedevices lose connectivity when the users roam. How can this problem be fixed?

Assign different SSIDs to each AP.

Reconfigure all APs to the same channel.

Use the same BSSID address for each AP.

Reposition the APs so that each area of signal strength overlaps the neighbor by at least 10-15%.


2 of 16 6/14/2009 5:55 PM

7Refer to the exhibit. The network administrator wants to configure Switch1 to allow SSH connectionsand prohibit Telnet connections. How should the network administrator change the displayedconfiguration to satisfy the requirement?

Use SSH version 1.

Reconfigure the RSA key.

Configure SSH on a different line.

Modify the transport input command.

8 How does Spanning Tree Protocol aid network architecture?

allows for redundant links by eliminating loops

provides greater scalability by eliminating collisions

reduces switch processor load by reducing broadcast traffic on trunk links

reduces administrative overhead by sharing VLAN databases between switches across thenetwork

9Refer to the exhibit. A new host needs to be connected to VLAN 3. Which IP address should beassigned to this new host?

192.168.1.22 /28

192.168.1.31 /28

192.168.1.32 /28

192.168.1.52 /28

192.168.1.63 /28

10 In setting up a wireless infrastructure network, which device is used to associate a client computer tothe network?

an Ethernet switch

a wireless access point

another wireless computer

a hard-wired computer on the network

11 Which statement about STP network diameter is correct?

STP diameters are restricted by convergence times.

Layer 2 root elections should be optimized by adjusting BPDU timers to match network diameter.

Using lower bandwidth connections between switches will allow STP to have a larger networkdiameter.

Portfast can be used to increase the allowable switched network diameter because it disables theforward delay and maximum age timers.


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12Refer to the exhibit. Hosts that are connected to switch SW1 are not able to communicate with hostsin the same VLAN that are connected to switch SW2. What should be done to fix the problem?

Introduce a Layer 3 device in the topology.

Configure both switches in VTP transparent mode to allow them to share VLAN information.

Reconfigure the fa0/1 interface on switch SW1 with a static trunk configuration.

Apply IP addresses that are in the same subnet to FastEthernet 0/1 on SW1 and FastEthernet 0/2on SW2.

13Refer to the exhibit. What would happen if the network administrator moved the network cable ofHost A from interface Fa0/1 to Fa0/3 on switch SW1?

Host A remains a member of VLAN 10, because the router is routing traffic between VLANs.

Host A is no longer a member of VLAN 10, because port Fa0/3 has been manually assigned toVLAN 30.

Host A remains a member of VLAN 10, because the switch provides dynamic VLAN assignmentfor the port.

Host A maintains connectivity to all members of VLAN 10, because it is connected to the samephysical network.

Host A is no longer a member of VLAN 10, but because port Fa0/3 was unused, it is now amember of VLAN 1.

14Refer to the exhibit. All hosts are in listen mode. Host 1 and Host 4 both transmit data at the sametime. How do the hosts respond on the network? (Choose two.)

After the end of the jam signal, a backoff algorithm is invoked.

Hosts 1 and 4 are operating full duplex so no collision will exist.

The hub will block the port connected to Host 4 to prevent a collision.

Hosts 1 and 4 are assigned shorter backoff values to provide them priority to access the media.

If a host has data to transmit after the backoff period of that host, the host checks to determine ifthe line is idle before transmitting.

15 What are two requirements for configuring inter-VLAN routing using the router-on-a-stick model?(Choose two.)

Each subinterface should be configured with its own IP address, subnet mask, and unique VLANassignment.

The physical interface of the router must be connected to a trunk link on the adjacent switch.

The number of physical interfaces on the router should match the number of VLANs.

Different static VLANs should be assigned to different interfaces of the router.

The router should be configured as the VTP server.

16Refer to the exhibit. Router R1 is properly configured for router on a stick inter-VLAN routing, but PC1is unable to ping PC2. What needs to be done to resolve the problem?


4 of 16 6/14/2009 5:55 PM

Rename VLAN1.

Connect one more port of S1 to R1.

Configure the Fa0/1 port of S1 as a trunk port.

Move the Fa0/0 interface of R1 to another VLAN.

17Refer to the exhibit. If switch SW1 is configured with the four VLANs as shown in the exhibit, howmany physical interfaces are needed on router R1 to configure inter-VLAN routing usingsubinterfaces?

zero

one

two

four

18Refer to the exhibit. Router RA receives a packet with a source address of 192.168.1.35 and adestination address of 192.168.1.85. What will the router do with this packet?

The router will drop the packet.

The router will forward the packet out interface FastEthernet 0/1.1.



The router will forward the packet out interface FastEthernet 0/1.2 and interface FastEthernet0/1.3.

19Refer to the exhibit. What does the term DYNAMIC indicate in the output that is shown?

This entry can only be removed from the MAC address table by a network administrator.

When forwarding a frame to the device with address 0060.5c5b.cd23, the switch does not have toperform a lookup to determine the final destination port.

Only the device with MAC address 0060.5c5b.cd23 will be allowed to connect to port Fa0/18.

The switch learned this MAC address from the source address in a frame received on

Fa0/18.

20 Which parameter is associated with wireless authentication?

shared key

SSID

ad hoc

channel

21Refer to the exhibit. Hosts B and C attempt to transmit a frame at the same time, but a collisionoccurs. Which hosts will receive the collision jamming signal?

22 What is an efficient and cost effective way to minimize the frequency and effects of broadcast stormson an Ethernet LAN?


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Connect each PC directly to a router port.

Use access control lists to filter broadcasts from the network.

Divide the computers into separate VLANs on the existing switches.

Divide the computers into separate workgroups using different physical switches.

23Refer to the exhibit. The switches in the exhibit have VTP pruning enabled. Which VLAN(s) will beallowed on the trunk to SW2 by SW4?

VLAN 20 only

VLAN 10 and VLAN 30

VLAN 10, VLAN 20, and VLAN 30

VLAN 1, VLAN 20 and VLANs 1002 through 1005

24 What is the correct order in which the STP components are chosen?

designated ports, nondesignated ports, root bridge, root ports

nondesignated ports, designated ports, root ports, root bridge

root bridge, root ports, designated ports, nondesignated ports

root ports, root bridge, nondesignated ports, designated ports

25Refer to the exhibit. Hosts PC_A and PC_B send traffic simultaneously, and the frames from thetransmitting stations collide. What is the last device to receive the collision?

hub HB1

switch SW1

router R1

switch SW2

router R2

switch SW4

26Refer to the exhibit. What three statements describe why Host1 and Host2 are unable tocommunicate? (Choose three.)

The switch ports are on different VLANs.

The switch IP address is on the wrong subnet.

The hosts are configured on different logical networks.

A router is required to forward traffic between Host1 and Host2.


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The VLAN port assignments must be contiguous for each VLAN.

The host default gateway addresses must be on the same logical network.

27 Which statement is correct about STP architecture?

Spanning Tree Protocol will guarantee a loop free Layer 2 topology.

Spanning Tree Protocol guarantees the shortest path to destination networks.

The switch with the highest priority will be assigned the lowest BID in the root election.

The first step in the spanning-tree election process is to determine the root port.

To select designated ports, the spanning-tree algorithm must determine the longest contiguouspath from the root bridge.

28 While configuring a new switch, a network administrator configures the switch as an HTTP server.What benefits does this configuration provide?

This allows the switch to host web pages for the network.

This allows remote VPN connections to the switch over the Internet.

This is required if a web server or web farm is attached to the switch.

This allows web-based configuration tools to be used with the switch.

29 What are two benefits of the IEEE 802.11n standard over the IEEE 802.11G? (Choose two.)

requires less equipment

provides improved range

permits increased data rates

has a single-input and a single-output

needs no hardware upgrade for compatibility

30Refer to the exhibit. The network administrator wants to allow both SSH and Telnet connections toSwitch1. However, the SSH connections fail. What is the most likely cause of this problem?

The RSA key has been removed.

SSH has been configured on the wrong line.

The transport input command is applied incorrectly.

The domain name has been configured in the wrong configuration mode.

31Refer to the exhibit. A new switch, SW3, has been added to the network. The network administratordetermines that VLAN information is not propagating to SW3. Which command will remedy theproblem?

SW1(config)# vtp version 1


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SW2(config)# vtp mode client

SW3(config)# vtp domain Cisco1

SW3(config)# vtp mode transparent

32 Which CLI mode allows users to access all device commands, such as those used for configuration,management, and troubleshooting?

user EXEC mode

privileged EXEC mode

global configuration mode

interface configuration mode

33Refer to the exhibit. Users A and B are reporting intermittent connectivity problems. Pre-installationsurveys showed strong signal strength from the AP locations to the client locations. Outside electricalinterference has been eliminated. What will fix the problem?

Relocate the APs closer to each other.

Increase the distance between the clients.

Change the channel on AP-B to 6 or 11.

Place AP-A and AP-B on the same wireless channel.

34 A switch that is using port-based memory buffering receives two incoming frames on the same port.The destination port for the first frame that is received is busy. How will the switch handle the secondframe that it received?

The second frame will have to wait to be delivered even if its destination port is available.

The second frame will be delivered to the memory buffer for its destination port.

The second frame will be placed in a common memory buffer to await delivery.

The second frame will be dropped.

35Refer to the exhibit. The network administrator has just added VLAN 50 to Switch1 and Switch2.Hosts A, B, C, and D are correctly configured with IP addresses in the subnet range for VLAN 50.Host A can communicate with host B, but cannot communicate with host C or host D. What is thecause of this problem?

There is a native VLAN mismatch.

The Fa0/11 interface of Switch1 is not configured as a trunk.

The link between Switch1 and Switch2 is up but not trunked.

VLAN 50 is not allowed on the trunk link between Switch1 and Switch2.

36Refer to the exhibit. Switch SW2 was tested in a lab environment and then inserted into a productionnetwork without reloading its configuration. After the trunk link between SW1 and SW2 was broughtup, all users lost connectivity to the network. What could be the source of the problem?

37 Company policy requires disabling the command history buffer on network devices. An administrator

enters terminal no history size at the command prompt on a Cisco Catalyst switch and receives noerror messages back, but the command history buffer is still available. What is the problem?


8 of 16 6/14/2009 5:55 PM

The command contained a syntax error.

The Cisco IOS version does not support disabling the command history buffer.

The command history can only be disabled on a router, not a switch.

The size parameter reset the default buffer size but did not disable access to the buffer.

38Refer to the exhibit. Which two options correctly describe the router configuration that is shown?(Choose two.)

Routing between the 192.168.1.0 and 192.168.3.0 networks will not succeed until a routingprotocol is configured on the router.

VLANs have not been appropriately configured on the router subinterfaces.

The configuration is appropriate for a router-on-a-stick network design.

Trunking has been appropriately configured on the router subinterfaces.

An IP address should be applied to interface Fa0/1 for routing to occur.

39Refer to the exhibit. After entering the commands in the exhibit, the administrator receives a“password required, but none set” message when attempting to connect to S1. What is the problem?

The enable secret password was not set.

S1 does not have login configured on the vty lines.

S1 does not have a password configured for the vty lines.

The crypto key is not properly configured to generate passwords.

The VLAN1 interface has not be enabled with the no shutdown command.

40Refer to the exhibit. A network administrator has segmented the network into two VLANs andconfigured R1 and S1 as displayed. However, PC1 is unable to access PC2. What is the likelyproblem?

No routing protocol is configured on R1.

The Fa0/1 port of S1 is not a trunk port.

The default gateway address is not set on S1.

Only one physical link between S1 and R1 is configured for inter-VLAN routing.

41Refer to the exhibit. The Layer 2 switching design that is shown has been implemented in a campusenvironment that is using Spanning Tree Protocol. All inter-switch links that are shown are trunks.Whenever an inter-switch link fails, the network takes nearly a minute to completely converge. Howcan the convergence time be reduced?

Increase the capacity of the distribution and core trunk links to 10 Gb/s.


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Add a trunk link that directly connects D1 and D2.

Use Layer 3 switching on the core switch.

Implement Rapid Spanning Tree Protocol.

42Refer to the exhibit. What are two reasons for the Fa0/24 port being placed in the blocking state?(Choose two.)

This switch is not the root bridge.

The Fa0/24 port is administratively down.

STP has detected links that create a loop.

There is a change in the VTP configuration.

The Fa0/24 port is overloaded with too much traffic for its configured bandwidth.

43 Which three actions are performed during the boot sequence of a Cisco switch? (Choose three.)

The boot loader uses the self-contained switch operating system to boot the switch.

The boot loader retrieves diagnostics routines via TFTP.

The boot loader performs POST.

The boot loader is loaded from RAM.

The boot loader initializes the flash file system that is used to boot the system.

The boot loader loads the default operating system if the flash-based operating system is corruptor missing.

44 Which combination is required to establish a connection to initially configure the Linksys WRT300Nwireless access device?

a computer with a console connection to the WRT300N

a computer with a wireless connection to the WRT300N

a computer with an AUX port connection to the WRT300N

a computer configured in the same IP subnet as the WRT300N and a direct cable

connection to it

45Refer to the exhibit. RTB is configured for traditional inter-VLAN routing. RTB can ping computer A butcannot ping computer B. What is a possible cause of this failure?

Port Fa0/11 is in the wrong VLAN.

RTB does not have an active routing protocol.

The IP address of computer B is in the wrong logical network.

Router interface Fa0/1 has the wrong trunk encapsulation type configured.


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46 In which mode is a VTP switch operating if it has been configured to only forward VTPadvertisements?

client

root

server

transparent

47Refer to the exhibit. Switch SW2 has been newly purchased and added to the network. Whatconfiguration should be applied to SW2 so that it participates in the same VTP domain as switchSW1, receives VLAN information from SW1, and synchronizes VLAN information?

Disable VTP pruning on SW2.

Configure SW2 in VTP transparent mode.

Configure SW2 with the VTP domain password.

Configure SW2 as a VTP server with a higher revision number.

48Refer to the exhibit. What is the effect of setting the security mode to WEP on the Linksys integratedrouter?

WEP identifies the wireless LAN.

WEP allows the access point to inform clients of its presence.

WEP translates IP addresses into easy-to-remember domain names.

WEP encrypts data between the wireless client and the access point.

WEP ensures that only authenticated users are allowed access to the WLAN.

WEP translates an internal address or group of addresses into an outside, public address.

49Refer to the exhibit. What will allow a host on VLAN 40 on switch X to communicate with a host inVLAN 40 on switch Y?

QoS

routing

trunking

VPN

50Refer to the exhibit. All switches are configured with the default bridge priority. Which port will act asa non-designated port if all links are operating at the same bandwidth?

Fa0/1 interface of switch A


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Fa0/2 interface of switch A

Fa0/1 interface of switch B

Fa0/2 interface of switch B

Fa0/1 interface of switch C

Fa0/2 interface of switch C

51 What provides an authentication mechanism for 802.11-based wireless networks?

DSSS

OFDM

SSID

WPA

52Refer to the exhibit. Computer D sends a broadcast message. Which devices will process thebroadcast message?

computer E

computer D and computer E

computer D, computer E, and Router1

computer B and computer E

computer B, computer E, and Router1

computer C, computer D, and computer E

computer C, computer D, computer E, and Router1

computer A, computer B, computer C, computer D, computer E,

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12 of 16 6/14/2009 5:55 PM

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16410751 CCNA E3 Final Latest Upd

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