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What two things will a router do when running a distance vector routing protocol?

admin2019-04-08  13
问题 What two things will a router do when running a distance vector routing protocol?
选项 A、        Send periodic updates regardless of topology changes．
B、        Send entire routing table to all routers in the routing domain．
C、        Use the shortest-path algorithm to the determine best path．
D、        Update the routing table based on updates from their neighbors．
E、        Maintain the topology of the entire network in its database．
答案A,D
解析 一个路由器运行距离矢量路由的时候有哪两个特点？
A：周期性更新，正确。
B：发送整个路由表到整个路由域，错误，只发送给邻居。
C：使用SPF算法，错误。
D：依靠邻居发送更新来更新路由表，正确。
E：在数据库中维护整个网络的拓扑，错误。
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