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  3. What is the result of issuing the frame-relay map ip 192．168．1．2 202 broadcast command?

What is the result of issuing the frame-relay map ip 192．168．1．2 202 broadcast command?

admin2019-04-08  31
问题 What is the result of issuing the frame-relay map ip 192．168．1．2 202 broadcast command?
选项 A、        defines the source IP address that is used in all broadcast packets on DLCI 202
B、        defines the DLCI that is used for all packets that are sent to the 192．168．1．2 IP address
C、        defines the destination IP address that is used in all broadcast packets on DLCI 202
D、        defines the DLCI on which packets from the 192．168．1．2 IP address are received
答案B
解析 题目是说， 出现frame-relay map ip 192．168．1．2 202 broadcast 结果是什么？
broadcast支持广播,命令也有说明映射关系．
翻译选项
A说------定义源ip地址--显然不对。
B说------定义这对所有发送到192．168．1．2的IP地址的数据包使用的DLCI是对的。
而C应该是说-------定义了目标IP地址，它是在所有的广播数据包上使用的DLCI 202也说不通
D说------定义的数据包的IP地址从192．168．1．2收到的DLCI也不对。
题目要求 frame-relay map ip 192．168．1．2 202 broadcast 的作用，而不是broadcast的作用，所以选C是片面的。
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