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Cisco CCNA 640-802试题(151-155)

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(151-155)试题及答案。

AD:

151. Refer to the exhibit. How will router A choose a path to the 10.1.2.0/24 network when different routingprotocols are configured? (Choose three.)

  

A. If RIPv2 is the routing protocol, only the path AD will be installed in the routing table by default.

B. If RIPv2 is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by

default.

C. If EIGRP is the routing protocol, only the path AD will be installed in the routing table by default.

D. If EIGRP is the routing protocol, the equal cost paths ABD and ACD will be installed in the routing table by

default.

E. If EIGRP and OSPF are both running on the network, the EIGRP paths will be installed in the routing table.

F. If EIGRP and OSPF are both running on the network, the OSPF paths will be installed in the routing table.

Answer: ADE


152. A router learns about a remote network from EIGRP, OSPF, and a static route. Assuming all routing protocols are using their default administrative distance, which route will the router use to forward data to the remotenetwork?

A. The router will use the static route.

B. The router will use the OSPF route.

C. The router will use the EIGRP route.

D. The router will load balance and use all three routes.

Answer: A


153. Refer to the exhibit. A new subnet with 12 hosts has been added to the network. Which subnet address should this network use to provide enough useable addresses while wasting the fewest addresses?

  

A. 192.168.10.80/28

B. 192.168.10.80/29

C. 192.168.10.96/28

D. 192.168.10.96/29

Answer: C

154. What is one reason that WPA encryption is preferred over WEP?

A. A WPA key is longer and requires more special characters than the WEP key.

B. The access point and the client are manually configured with different WPA key values.

C. WPA key values remain the same until the client configuration is changed.

D. The values of WPA keys can change dynamically while the system is used.

Answer: D


155. An access list has been designed to prevent HTTP traffic from the Accounting Department from reaching the HR server attached to the Holyoke router. Which of the following access lists will accomplish this task whengrouped with the e0 interface on the Chicopee router?

 

A. permit ip any any

deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80

B. permit ip any any

deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80

C. deny tcp 172.17.17.252 0.0.0.0 172.16.16.0 0.0.0.255 eq 80

permit ip any any

D. deny tcp 172.16.16.0 0.0.0.255 172.17.17.252 0.0.0.0 eq 80

permit ip any any

Answer: D

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