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[学习资料] Cisco 640-802v13++题库祥解11[艾迪飞双CCIE黄老师主讲]

本主题由 左边的云 于 2008-3-31 09:10 设置高亮

Cisco 640-802v13++题库祥解11[艾迪飞双CCIE黄老师主讲]

36. Host 1 is trying to communicate with Host 2. The e0 interface on Router C is down. Which of the following

 

are true? (Choose two.)

  [attach]***[/attach]

A. Router C will use ICMP to inform Host 1 that Host 2 cannot be reached.

 

B. Router C will use ICMP to inform Router B that Host 2 cannot be reached.

 

C. Router C will use ICMP to inform Host 1, Router A, and Router B that Host 2 cannot be reached.

 

D. Router C will send a Destination Unreachable message type.

 

E. Router C will send a Router Selection message type.

 

F. Router C will send a Source Quench message type.

 

Answer: AD

 

解释:当C的e0口down掉以后,我们会发现在C上e0口的直连路由也会随之消失,那么,我们从host1

        去ping host2 时,数据包到了C会被丢掉,因为没有路由,同时,C会对host1 回复一个ICMP不可达

        的消息,在路由器里面显示ICMP不可达消息,显示为U.答案AD是正确的

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回复 1# 的帖子

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张建桥

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 jjjjjjjjjjjj

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题库虽好,可现在的思科认证似乎看重的好单位需求不如作软件开发的多呀.......

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serialserial

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将计就计将计就计经济

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支持楼主分享~~~~~感谢~

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感谢分享!

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顶一个

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当C的e0口down掉以后,我们会发现在C上e0口的直连路由也会随之消失,那么,我们从host1 去ping host2 时,数据包到了C会被丢掉,因为没有路由,同时,C会对host1 回复一个ICMP不可达 的消息,在路由器里面显示ICMP不可达消息,显示为U.答案AD是正确的

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