[单选题]下面对Cisco2621路由器和Cisco2501路由器描述中,错误的是()
正确答案 :C
Cisco2501上提供一个100Mbit/s的快速以太网端口
[单选题]当拓扑信息完成交换,相邻路由器具有相同的LSDB时,下列哪项OSPF邻居状态是希望得到的()
正确答案 :B
FULL
[单选题]100baseT的速率是()Mbit/s
正确答案 :C
100
[单选题]路由器上的命令“show version”的功能是()
正确答案 :A
显示版本信息
[单选题]What is the purpose of the spanning-tree algorithm in a switched LAN?
正确答案 :C
To prevent switching loops in networks with redundant switched paths.
解析:解析:Explanation:STPisusedinLANswithredundantpathsorroutestopreventloopsinalayer2switchedorbridgedLAN.IncorrectAnswers:A,B:TheprimarypurposeofSTPistopreventloops,notformonitoringormanagementofswitchesorVLANs.D.VLANsareusedtosegmentaLANintomultiplecollisiondomains,buttheSTPprocessalonedoesnotdothis.E.Routersareusedtopreventroutingloopsatlayer3oftheOSImodel.STPoperatesatlayer2.
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