简单爱 发表于 2004-3-3 20:06:48

关于PING的问题。

<br>Host TestKing1 is trying to communicate with Host TestKing2. The e0 interface on TestKingC is down.<br>Which of the following are true? (Choose two)<br>A. TestKingC will use ICMP to inform Host 1 that Host 2 cannot be reached.<br>B. TestKingC will use ICMP to inform TestKingB that Host 2 cannot be reached.<br>C. TestKingC will use ICMP to inform Host 1, TestKingA, and TestKingB that Host 2 cannot be reached.<br>D. TestKingC will send a Destination Unreachable message type.<br>E. TestKingC will send a Router Selection message type.<br>F. TestKingC will send a Source Quench message type.<br>Answer: B, D<br>我觉得应该选A啊？<br>

简单爱 发表于 2004-3-3 20:10:13

不好意思，图没法弄上来。<br>

简单爱 发表于 2004-3-3 20:13:11

大概的意思是：host1在testking1内，testking1与testking2相连，testking2再与testking3相连，testki与host2相连。

cwav 发表于 2004-3-3 22:31:53

把图贴上来，这样看太晕了
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