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Cisco CCNA 640-802试题(146-150)

2008-07-14 12:55 佚名 51cto.com 字号:T | T
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本文内容为Cisco CCNA认证考试640-802(146-150)试题及答案。

AD:

146. Which two devices can interfere with the operation of a wireless network because they operate on similarfrequencies? (Choose two.)

A. copier

B. microwave oven

C. toaster

D. cordless phone

E. IP phone

F. AM radio

Answer: BD


147. Refer to the exhibit. What can be determined about routes that are learned from the router at IP address190.171.23.12?

  

A. HQ_Router last received an update from 190.171.23.12 at 3:30 am.

B. If HQ_Router does not receive an update from 190.171.23.12 in 30 seconds, all routes from that source will be

removed from the routing table.

C. If HQ_Router does not receive an update from 190.171.23.12 in 30 seconds, all routes from that source will be

flagged with a hold-down timer.

D. 190.171.23.12 is expected to send an update to HQ_Router for network 190.172.0.0 in 3 minutes and 30

seconds.

Answer: B


148. If an ethernet port on a router was assigned an IP address of 172.16.112.1/20, what is the maximum numberof hosts allowed on this subnet?

A. 1024

B. 2046

C. 4094

D. 4096

E. 8190

Answer: C


149. Refer to the exhibit. A network associate needs to configure the switches and router in the graphic so that thehosts in VLAN3 and VLAN4 can communicate with the enterprise server in VLAN2. Which two Ethernet segments would need to be configured as trunk links? (Choose two.)

  

A. A

B. B

C. C

D. D

E. E

F. F

Answer: CF


150. Which tables of EIGRP route information are held in RAM and maintained through the use of hello and update packets? (Choose two.)

A. neighbor table

B. SPF table

C. RTP table

D. topology table

E. query table

F. DUAL table

Answer: AD

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