[单选题]标准访问控制列表应被放置的最佳位置是在()。
正确答案 :B
越靠近数据包的目的地越好
[单选题]在路由器上,命令show access-list的功能是()
正确答案 :A
显示访问控制列表内容
[单选题]备份路由器IOS的命令是:()
正确答案 :A
copy flash tftp
[单选题]关于帧中继的说法,正确的是()
正确答案 :C
可以偷占带宽
[单选题]While troubleshooting a connectivity problem on the network, you issue the ping command from your PC command prompt, but the output shows "request times out."At which OSI layer is this problem associated with?
正确答案 :E
The network layer
解析:解析:Explanation:
[多选题]CDP is being used throughout the Ezonexam network. What are two reasons why the Ezonexam network administrator would use CDP? (Choose two)
正确答案 :BD
To obtain the IP Address of a connected device in order to telnet to the device
To verify Layer 2 connectivity between two devices when Layer 3 fails
[单选题]帧中继环境下,为了区分虚电路,应该使用的地址是()
正确答案 :C
DLCI
[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
[单选题]在路由表中到达同一网络的路由有:静态路由、RIP路由、IGRP路由,OSPF路由,则路由器会选用哪条路由传输数据:()
正确答案 :A
静态路由
[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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