[cisco策略路由]Cisco试题:路由可信度考题分析
【shitiku.jxxyjl.com--思科试题】
问题：
which of the following routes will be used to forward data in a situation where a routing table contains static,rip,and igrp routes destined to the same network with each set to its default administrative distance?
a.the rip route
b.the static route
c.the igrp route
d.all three will load balance.
select the best 1 answer。
当路由表中包含静态、rip、igrp时，比较它们的默认管理距离，会选择哪一个用来转发数据？
题解：
路由器的ios使用一个叫作“管理距离(administrative distance)”的概念来决定使用何种路由，管理距离是一个表示某个单独路由器中全部路由协议的可信度的数字，这个数字越低越好，或者说这个路由协议越值得信赖。
类型 管理距离
staic 1
igrp 100
rip 120
由此表可以看出，表态路由的可信度最高。
正确答案：b
参考资料：
ccna self-study ccna icnd exam certification guide(ciscopress,isbn 1-58720-083-x)-page 177
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