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CCNA 640-802 V14 题库(221-225)

2008-07-18 09:43 佚名 51CTO.com 字号:T | T
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本文内容为Testinside CCNA 640-802 V14 最新题库(221-225)试题及答案。

AD:

221. Refer to the exhibit. What statement is true of the configuration for this network?

  

A. The configuration that is shown provides inadequate outside address space for translation of the number ofinside addresses that are supported.

B. Because of the addressing on interface FastEthernet0/1, the Serial0/0 interface address will not support theNAT configuration as shown.

C. The number 1 referred to in the ip nat inside source command references access-list number 1.

D. ExternalRouter must be configured with static routes to networks 172.16.1.0/24 and 172.16.2.0/24.

Answer: C

222. What is the purpose of using the traceroute command?

A. to map all the devices on a network

B. to display the current TCP/IP configuration values

C. to see how a device MAC address is mapped to its IP address

D. to see the path a packet will take when traveling to a specified destination

E. to display the MTU values for each router in a specified network path from a source to a destination

Answer: D

223. Refer to the exhibit. The switches on a campus network have been interconnected as shown. All of theswitches are running Spanning Tree Protocol with its default settings. Unusual traffic patterns are observed and itis discovered that Switch9 is the root bridge. Which change will ensure that Switch1 will be selected as the rootbridge instead of Switch9?

  

A. Lower the bridge priority on Switch1.

B. Raise the bridge priority on Switch1.

C. Lower the bridge priority on Switch9.

D. Raise the bridge priority on Switch9.

E. Disable spanning tree on Switch9.

F. Physically replace Switch9 with Switch1 in the topology.

Answer: A

224. What is the purpose of an ARP request message?

A. It binds the IP address of a host to the network that it is on.

B. It builds a correlation between an IP address and a MAC address.

C. It provides connectivity and path selection between hosts on a network.

D. It encapsulates the Layer 3 address and then passes the packet to Layer 2.

E. It creates a session by passing a header with the destination Layer 2 address to the transport layer.

Answer: B

225. Refer to the exhibit. The network manager is evaluating the efficiency of the current network design. RIPv2 is enabled on all Layer 3 devices in the network. What network devices participate in passing traffic from the PCat 10.10.1.7 to File Server at 10.20.1.6 in the order that they will forward traffic from source to destination?

  

A. Switch1, Switch2

B. Switch1, Switch2, Router2, Switch2

C. Switch 1, Router1, Switch1, Switch2

D. Switch1, Router1, Router2, Switch2

Answer: D

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