[单选题]交换机转发数据到目的地依靠()
正确答案 :B
MAC地址表
[单选题]How can a Ezonexam administrator determine if a router has been configured when it is first powered up?
正确答案 :C
An un configured router goes into the setup dialog
解析:解析:Explanation:
[单选题]You want to upgrade the Ezonexam LAN so that all ports operate in full duplex mode. Which statement is true about full-duplex Ethernet when comparing to half-duplex Ethernet?
正确答案 :C
Full-duplex Ethernet can provide higher throughput than can half-duplex Ethernet of the same bandwidth
[多选题]With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)
正确答案 :BC
A device listens and waits until the media is not busy before transmitting.
All devices on an Ethernet segment see data that passes on the network medium.
解析:解析:Explanation:
[单选题]OSI七层模型中,数据链路层的数据封装名称为()
正确答案 :B
帧
[单选题]在地址转换中,()用来规定哪些数据包需要进行地址转换
正确答案 :B
访问控制列表
[多选题]下列哪一设备工作时,要用到OSI的七个层(一层到七层)()
正确答案 :ABC
PC
网管机
WEB服务器
解析:ABC
[单选题]路由器上,命令“show int s0”的显示结果为:Serial0 is up,line protocol is down出现该结果的可能原因是()
正确答案 :C
两端设备协议不一致
[单选题]备份路由器IOS的命令是:()
正确答案 :A
copy flash tftp
[单选题]基本IP访问权限表的表号范围是:()
正确答案 :B
1-99
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