单项选择题

A network administrator receives an error message while tring to configure the Ethernet interface of a router with IP address 10.24.24.24/29. which statement explains the reason for this issue？（）

A.The address is abroadcast address.
B.The Ehernet interface is faulty.
C.VLSM-capable routing protocols must be enable first on the router.
D.This address is a network address.

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多项选择题

Why do large OSPF networks use a hierarchical design？（）

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 router swith distribution layer switches
E.to decrease latency by increasing bandwidth
F.to reduce routing overhead

多项选择题

根据下图，WLANdiagram决定了哪两个事实？（）

A.两个cells的overlap的区域描述了一个basic service set
B.网络描述了一个extended service set
C.再每个CELL中的AP必须被配置成使用channel 1
D.为了确保连通性，重叠区域必须小于10%
E.两个访问点应该被配置成工作在不同的频道

单项选择题

Which statement is true，as relates to classful or classless routing？（）

A.RIPV1 and OSPF are classless routing protocols.
B.Classful routing protocols send the subnet mask in routing updates.
C.Automatic summarization at classful boundaries can cause problems on disc……
D.EIGRP and OSPF are classful routing protocols and summarize routes by def……