[单选题]OSPF在同一区域内,下列说法正确的是()
正确答案 :B
每台路由器的LSDB(链路状态数据库)都是相同的
[单选题]At which layer of the OSI model does the protocol that provides the information displayed by the "show cdp neighbors" command operate?
正确答案 :D
Data link
解析:解析:Explanation:
[多选题]When you compare the differences between half-duplex and full-duplex Ethernet, which of the following characteristics are exclusive to half-duplex? (Select two answer choices)
正确答案 :AD
Half-duplex Ethernet operates in a shared collision domain.
Half-duplex Ethernet has lower effective throughput.
解析:解析:Explanation:
[单选题]命令“ping127.0.0.1”的功能是()
正确答案 :C
测试TCP/IP协议是否正常
[多选题]交换机的三大功能为()
正确答案 :ABC
地址学习
转发过滤
消除回路
解析:ABC
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