a network administrator views the output from the show ip route command.

题目

a network administrator views the output from the show ip route command.
a network that is advertised by both rip and igrp appears in the routing table flagged as an igrp route.why is the rip route to this network not used in the routing table?
A.igrp has a faster update timer.
B.igrp has a lower administrative distance.
C.rip has a higher metric value for that route.
D.the igrp route has fewer hops.
E.the rip path has a routing loop.

答案

我觉得这题选B
提问是问你 一个路由器上同时配置了RIP和IGRP两个路由协议 （这两个都是距离矢量,度量都是跳数） 然后问题 路由表中一个目的网络为什么只有IGRP的没有RIP
很明显 这个是由于 IGRP的管理距离小于RIP的管理距离
所以我选择B 其他的选项都是迷惑人的 不知道能理解我的意思么