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CCNA 640-802 V14 题库(181-185)

2008-07-17 17:23 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(181-185)试题及答案。

AD:

181. Refer to the exhibit. Why is flash memory erased prior to upgrading the IOS image from the TFTP server?

  

A. The router cannot verify that the Cisco IOS image currently in flash is valid.

B. Flash memory on Cisco routers can contain only a single IOS image.

C. Erasing current flash content is requested during the copy dialog.

D. In order for the router to use the new image as the default, it must be the only IOS image in flash.

Answer: C

182. Refer to the exhibit. Which two statements are true based the output of the show frame-relay lmi commandissued on the Branch router? (Choose two.)

 

A. LMI messages are being sent on DLCI 0.

B. LMI messages are being sent on DLCI 1023.

C. Interface Serial0/0 is not configured to encapsulate Frame Relay.

D. The Frame Relay switch is not responding to LMI requests from the router.

E. The LMI exchange between the router and Frame Relay switch is functioning properly.

F. The router is providing a clock signal on Serial0/0 on the circuit to the Frame Relay switch.

Answer: AD

183. Refer to the exhibit. The Branch router displays knowledge of a route to network 172.16.0.0/16. The actual network number at headquarters is 172.16.1.0/24. Why does the network number appear as it does in the routing table?

 

A. The Branch router has a static route configured for the 172.16.0.0/16 network.

B. The routing protocol on the HQ router is using automatic route summarization.

C. The Branch router is configured to summarize to classful boundaries.

D. The routing protocol on the Branch router has been misconfigured.

E. The routing protocol that is forwarding this route only sends classful updates.

Answer: B

184. Which wireless LAN design ensures that a mobile wireless client will not lose connectivity when moving from one access point to another?

A. using adapters and access points manufactured by the same company

B. overlapping the wireless cell coverage by at least 10%

C. configuring all access points to use the same channel

D. utilizing MAC address filtering to allow the client MAC address to authenticate with the surrounding APs

Answer: B

185. Which encryption type does WPA2 use?

A. AES-CCMP

B. PPK via IV

C. PSK

D. TKIP/MIC

Answer: A

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