Why do large OSPF networks use a hierarchical design?

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问题 Why do large OSPF networks use a hierarchical design?

选项 A、 to confine network instability to single areas of the network．
B、 to reduce the complexity of router configuration
C、 to speed up convergence
D、 to lower costs by replacing routers with distribution layer switches
E、 to reduce routing overhead

答案A,C,E

解析 A把网络的不稳定性局限于单个区域
C加快汇聚
E减少路由负载

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Why do large OSPF networks use a hierarchical design?

思科640802

思科认证

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Inorderto"changelivesforthebetter"andreduce"dependency,"GeorgeOsborne,ChancelloroftheExchequer,introducedthe

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