Close Window Assessment System 1. Assessment Selection 2. Assessment Settings 3. Take Assessment Take Assessment - EWAN Final Exam - CCNA Exploration: Accessing the WAN (Version 4.0) Time Remaining: 1 Refer to the exhibit. What does the status of 1 under the “Deleted” column indicate in the output? The Branch router has Inverse ARP disabled. Split horizon is not enabled on the Branch router. A static mapping is configured with a wrong DLCI number on the Branch router. The Frame Relay switch can no longer detect a DTE on the other end of the PVC. 2 Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP? flow control error control authentication synchronous communication 3
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Assessment System
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Take Assessment - EWAN Final Exam - CCNA Exploration: Accessing the WAN (Version 4.0)
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1
Refer to the exhibit. What does the status of 1 under the “Deleted” column indicate in the output?
The Branch router has Inverse ARP disabled.
Split horizon is not enabled on the Branch router.
A static mapping is configured with a wrong DLCI number on the Branch router.
The Frame Relay switch can no longer detect a DTE on the other end of the PVC.
2Which additional functionality is available on an interface when the encapsulation is changed from HDLC to PPP?
Refer to the exhibit. Which data transmission technology is being represented?
TDM
PPP
HDLC
SLIP
4
Refer to the exhibit. Based on the output as shown, which two statements correctly define how the router will treat Telnet traffic that comes into interface FastEthernet 0/1? (Choose two).
Telnet to 172.16.10.0/24 is denied.
Telnet to 172.16.20.0/24 is denied.
Telnet to 172.16.0.0/24 is permitted.
Telnet to 172.16.10.0/24 is permitted.
Telnet to 172.16.20.0/24 is permitted.
5 Which combination of authentication and Layer 2 protocol should be used to establish a link between a Cisco and a non-Cisco router without sending authentication information in plain text?
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.
10
Refer to the exhibit. A host connected to Fa0/0 is unable to acquire an IP address from this DHCP server. The output of the debug ip dhcp server command shows "DHCPD: there is no address pool for 192.168.1.1". What is the problem?
The 192.168.1.1 address has not been excluded from the DHCP pool.
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.
13 While troubleshooting a PPP link that uses PAP authentication, a network administrator notices an incorrectly configured password in the running configuration. The administrator corrects the error by entering the command ppp pap sent-username ROUTER_NAME password NEW_PASSWORD, but the link still does not come up.
Assuming that the rest of the configuration is correct and that the link has no physical layer problems, what should the administrator do?
Save the configuration to NVRAM.
Shut down the interface then re-enable it.
Generate traffic by pinging the remote router.
Use CHAP to ensure compatibility with the remote router.
14What name is given to the location where a customer network interfaces with a network that is owned by another organization?
CPE
DCE
local loop
demarcation point
15 When NAT is in use, what is used to determine the addresses that can be translated on a Cisco router?
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.
19
Refer to the exhibit. Partial results of the show access-lists and show ip interface FastEthernet 0/1 commands for router Router1 are shown. There are no other ACLs in effect. Host A is unable to telnet to host B. Which action will correct the problem but still restrict other
Refer to the exhibit. Company ABC expanded its business and recently opened a new branch office in another country. IPv6 addresses have been used for the company network. The data servers Server1 and Server2 run applications which require end-to-end functionality, with unmodified packets that are forwarded from the source to the destination. The edge routers R1 and R2 support dual stack configuration. What solution should be deployed at the edge of the company network in order to successfully interconnect both offices?
a new WAN service supporting only IPv6
NAT overload to map inside IPv6 addresses to outside IPv4 address
a manually configured IPv6 tunnel between the edge routers R1 and R2
static NAT to map inside IPv6 addresses of the servers to an outside IPv4 address and dynamic NAT for the rest of the inside IPv6 addresses
27
Refer to the exhibit. A network administrator is trying to connect R1 remotely to make configuration changes. Based on the exhibited command output, what will be the result when attempting to connect to R1?
failure to connect due to Telnet not being enabled
failure to connect due to incomplete configuration for Telnet
a successful connection and ability to make configuration changes
a successful connection but inability to make configuration changes because of the absence of an enable secret password
28
Refer to the exhibit. A technician issues the show interface s0/0/0 command on R1 while troubleshooting a network problem. What two conclusions can be determined by from the output shown? (Choose two.)
The bandwidth has been set to the value of a T1 line.
This interface should be configured for PPP encapsulation.
There is no failure indicated in an OSI Layer 1 or Layer 2.
The physical connection between the two routers has failed.
The IP address of S0/0/0 is invalid, given the subnet mask being used.
29Which option correctly defines the capacity through the local loop guaranteed to a customer by the service provider?
BE
DE
CIR
CBIR
30 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 staffs have been notified to work on their respective issues. Which statement applies to this situation?
Scheduling will be more difficult if the network and software teams work independently.
The symptom gathering stage incorporates researching the details of the software patches.
It will be difficult to isolate the problem if two staffs are implementing changes independently.
The network and application staffs must make their changes at the same time to accurately measure the effect of the cumulative changes.
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31
Refer to the exhibit. A network administrator has issued the commands that are shown on Router1 and Router2. A later review of the routing tables reveals that neither router is learning the LAN network of the neighbor router. What is most likely the problem with the RIPng configuration?
The serial interfaces are in different subnets.
The RIPng process is not enabled on interfaces.
The RIPng network command is not configured.
The RIPng processes do not match between Router1 and Router2.
32Which technology is used to dynamically map next hop, network layer addresses to virtual circuits in a Frame Relay network?
Inverse ARP
LMI
DLCI
FECN
33 Which encapsulation protocol when deployed on a Cisco router over a serial interface is only compatible with another Cisco router?
PPP
SLIP
HDLC
Frame Relay
34An administrator is unable to receive e-mail. While troubleshooting the problem, the administrator is able to ping the local mail server IP address successfully from a remote network and can successfully resolve the mail server name to an IP address via the use of the nslookup command. At what OSI layer is the problem most likely to be found?
physical layer
data link layer
network layer
application layer
35
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.
Refer to the exhibit. To reach R2, and for configuring Frame Relay on the point-to-point interfaces shown in the graphic, which DLCI should be used in the frame-relay interface-dlci command that is issued on R1?
Refer to the exhibit. PAT has been implemented on router R2. PC1 and PC2 are unsuccessful when attempting to connect to Internet resources. What is a possible cause?
No NAT pool is configured.
The "inside" and "outside" interfaces are switched.
The access control list is configured with an incorrect access list number.
The access control list is missing a statement for the 10.94.6.0 network.
The ip nat inside source list 1 interface command is pointing to the wrong serial interface.
Refer to the exhibit. What statement is true about the core router devices?
They use multiport internetworking devices to switch traffic such as Frame Relay, ATM, or X.25 over the WAN.
They provide internetworking and WAN access interface ports that are used to connect to the service provider network.
They provide termination for the digital signal and ensure connection integrity through error correction and line monitoring.
They support multiple telecommunications interfaces of the highest speed and are able to forward IP packets at full speed on all of those interfaces.
42A network administrator has changed the VLAN configurations on his network switches over the past weekend. How can the administrator determine if the additions and changes improved performance and availability on the company intranet?
Conduct a performance test and compare with the baseline that was established previously.
Interview departmental secretaries and determine if they think load time for web pages has improved.
Determine performance on the intranet by monitoring load times of company web pages from remote sites.
Compare the hit counts on the company web server for the current week to the values that were recorded in previous weeks.
Refer to the exhibit. Computers on the internal network need access to all servers in the external network. The only traffic that is permitted from the external network must be responses to requests that are initiated on the internal network. Which security measure would satisfy this requirement?
a numbered extended ACL
a named standard ACL
a reflexive ACL
a dynamic ACL
44Which 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.
45 Which three parameters must be configured on a router in order to enable SSH? (Choose three.)
retries
hostname
timeouts
domain name
asymmetrical keys
routing protocol
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46 What can a network administrator do to recover from a lost router password?
use the copy tftp: flash: command
boot the router to bootROM mode and enter the b command to load the IOS manually
telnet from another router and issue the show running-config command to view the password
boot the router to ROM monitor mode and configure the router to ignore the startup configuration when it initializes
47Which three statements are true about creating and applying access lists? (Choose three.)
Access list entries should filter in the order from general to specific.
One access list per port per protocol per direction is permitted.
Standard ACLs should be applied closest to the source while extended ACLs should be applied closest to the destination.
There is an implicit deny at the end of all access lists.
Statements are processed sequentially from top to bottom until a match is found.
The inbound keyword refers to traffic entering the network from the router interface where the ACL is applied.
48 A technician is talking to a colleague at a rival company and comparing DSL transfer rates between the two companies. Both companies are in the same city, use the same service provider, and have the same rate/service plan. What is the explanation for why company 1 reports higher download speeds than company 2 reports?
Company 2 downloads larger files than company 1 downloads.
Company 2 must share the connection to the DSLAM with more clients than company 1 shares.
Company 1 is closer to the service provider than is company 2.
Company 1 has a lower volume of POTS traffic than company 2 has.
Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC router to the Orlando router?
DLCI 123
DLCI 321
10.10.10.25
10.10.10.26
MAC address of the Orlando router
50
Refer to the exhibit. The link between the CTRL and BR_1 routers is configured as shown in the exhibit. Why are the routers unable to establish a PPP session?
The clock rate must be 56000.
The usernames are misconfigured.
The IP addresses are on different subnets.
The clock rate is configured on the wrong end of the link.
The CHAP passwords must be different on the two routers.
Interface serial 0/0/0 on CTRL must connect to interface serial 0/0/1 on BR_1.
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51
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.