EWAN Practice Final Exam

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EWAN Practice Final Exam1 What will be the result of adding the command ip dhcp excluded-address 172.16.4.1 172.16.4.5 to the configuration of a local router that has been configured as a DHCP server? Traffic that is destined for 172.16.4.1 and 172.16.4.5 will be dropped by the router. Traffic will not be routed from clients with addresses between 172.16.4.1 and 172.16.4.5. The DHCP server function of the router will not issue the addresses between 172.16.4.1 and 172.16.4.5. The router will ignore all traffic that comes from the DHCP servers with addresses 172.16.4.1 and 172.16.4.5.

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.1.4 Configuring a DHCP Server 2 An administrator is configuring a dual stack router with IPv6 and IPv4 using RIPng. The administrator receives an error message when trying to enter the IPv4 routes into RIPng. What is the cause of the problem? RIPng is incompatible with dual-stack technology. All interfaces have been configured with the incorrect IPv4 addresses. RIPv1 or RIPv2 needs to be configured in addition to RIPng to successfully use IPv4. When IPv4 and IPv6 are configured on the same interface, all IPv4 addresses are shut down in favor of the newer technology.

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.3.6 Routing Considerations with IPv6 3

Refer to the exhibit. Which DHCP requests will R1 answer? all DHCP requests that R1 receives requests that are broadcast to 10.0.1.255 DNS requests with a destination of 10.0.1.3 requests that are received on the FastEthernet 0/0 interface requests that come from any networks that are not listed as excluded

Observable Description Max Value 1 correctness of response 2 points for Option 4 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.1.4 Configuring a DHCP Server 4

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 10.1.1.1". What is the problem? The 10.1.1.1 address is already configured on Fa0/0. The default router for the 10Network pool is incorrect. The ip helper-address must be added to Fa0/0 interface. The pool of addresses for the 10Network pool is incorrect.

Observable Description Max Value 1 correctness of response 2 points for Option 4 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.1.8 Troubleshooting DHCP 5

Refer to the exhibit. The hosts in network A all have static addresses that are assigned in the 192.168.2.0./24 network. The hosts in network B are DHCP clients in the 192.168.1.0/24 network. After router R1 has been configured with the statements as shown in the exhibit, the DHCP clients are reporting that they cannot access any network resources. The hosts with static addresses cannot access any resources outside network A. What is the problem? The DHCP scope has the wrong address pool. The interfaces on R1 are incorrectly addressed. The assignable DCHP addresses are all excluded. The DCHP clients are receiving the wrong default router address.

Observable Description Max Value 1 correctness of response 2 points for Option 2 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.1.4 Configuring a DHCP Server 6

Refer to the exhibit. R1 is performing NAT overload for the 10.1.1.0/24 inside network. HostA has sent a packet to Web Server. What is the destination IP address of the return packet from Web Server when it is received at the NIC on HostA? 10.1.1.2:1234 172.30.20.1:1234 172.30.20.1:3333 192.168.1.2:80

Observable Description Max Value 1 correctness of response 2 points for Option 1 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 7.2.2 What is NAT? 7

At what physical location does the responsibility for a WAN connection change from the service provider to the user? DMZ local loop CSU/DSU demarcation point

Observable Description Max Value 1 correctness of response 2 points for Option 4 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.1.3 Demarcation Point 8 What three statements describe the roles of devices in a WAN? (Choose three.) A CSU/DSU terminates a digital local loop. A modem terminates a digital local loop. A CSU/DSU terminates an analog local loop. A modem terminates an analog local loop. A router is commonly considered a DTE device. A router is commonly considered a DCE device.

Observable Description Max Value 1 correctness of response Option 1, Option 4, and Option 5 are correct. 1 point for each correct option. 0 points if more options are selected than required. 3

This item references content from the following areas: CCNA Exploration: Accessing the WAN 1.2.2 WAN Physical Layer Concepts 9

Refer to the exhibit. Which statement is true about the WAN switch device? It uses a multiport internetworking device to switch traffic such as Frame Relay, ATM or X.25 over the

WAN. It provides internetworking and WAN access interface ports that are used to connect to the service provider network. It provides termination for the digital signal and ensures connection integrity through error correction and line monitoring. It converts the digital signals produced by a computer into voice frequencies that can be transmitted over the analog lines of the public telephone network.

Observable Description Max Value 1 correctness of response 2 points for Option 1 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 1.2.2 WAN Physical Layer Concepts 10

Refer to the exhibit. An administrator is trying to connect Router1, a Cisco router, to a non-Cisco router using a serial connection. Why is the connection failing? A loopback is not set. The interface has been shut down. The wrong encapsulation is being used. Queuing cannot be used when connecting to non-Cisco devices.

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.1.7 Troubleshooting a Serial Interface 11 Which device encodes data for transmission across the WAN service provider transmission link? CPE DTE

DCE UART

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.1.4 DTE and DCE 12

Refer to the exhibit. Why are the routers unable to establish a PPP session? 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 Router1 must connect to interface serial 0/0/1 on Router2.

Observable Description Max Value 1 correctness of response 2 points for Option 1 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.4.5 Configuring PPP with Authentication 13 What are the symptoms when the s0/0/0 interface on a router is attached to an operational CSU/DSU that is generating a clock signal, but the far end router on the point-to-point link has not been activated? show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial down, line protocol down. show controllers indicates cable type DCE V.35. show interfaces s0/0/0 indicates serial up, line protocol down. show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial up, line

protocol down. show controllers indicates cable type DTE V.35. show interfaces s0/0/0 indicates serial down, line protocol down.

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.1.7 Troubleshooting a Serial Interface 14

Refer to the exhibit. Router1 is not able to communicate with its peer that is connected to this interface. Based on the output as shown, what is the most likely cause? interface reset improper LMI type encapsulation failure local cable unplugged

Observable Description Max Value 1 correctness of response 2 points for Option 3 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 8.4.3 Data Link Layer Troubleshooting 15 Which protocol is used to authenticate connections over serial links securely? CHAP HDLC SLIP PAP

Observable Description Max Value

1 correctness of response 2 points for Option 1 0 points for any other option 2

This item references content from the following areas: CCNA Exploration: Accessing the WAN 2.4.1 PPP Authentication Protocols 2.4.3 Challenge Handshake Authentication Protocol (CHAP) 16

Refer to the exhibit. What is placed in the address field in the header of a frame that will travel from the DC office of ABC Company to the Orlando office? MAC address of the Orlando router MAC address o