[单选题]要把交换机的配置文件保存到tftp服务器,应使用的命令为()
正确答案 :B
copy running-configt ftp
[单选题]IP地址为:192.168.50.70,掩码为:255.255.255.248,则该IP和掩码结合,共划分了多少个子网(不包括全0子网和全1子网)()
正确答案 :B
30
[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]OSI七层模型中,“包”是哪一层数据封装的名称()
正确答案 :C
网络层
[单选题]为了连接“帧中继”线路,网络中的路由器需要提供的端口类型为()
正确答案 :B
Serial
[单选题]对路由器的描述,正确的是()
正确答案 :C
多广播域,单冲突域的设备
[单选题]The Ezonexam network administrator has issued the "VTP password ezonexam" command on a Cisco device. What is the purpose of this command?
正确答案 :D
It is used to validate the sources of VTP advertisements sent between switches
[单选题]After working all night and successfully configuring a Cisco router for the Ezonexam network you save your changes on the startup config, reboot the router, and go out for a cigarette. When you return, none of your changes are active and the router boots to the initial configuration mode! Which of the choices below indicates the source of your problem?
正确答案 :C
Router configuration-register set to bypass startup configuration
解析:解析:Explanation:
[单选题]下列关于路由器和交换机的描述中,错误的是()
正确答案 :D
交换机可以转发广播
[单选题]OSPF的度量值是什么()
正确答案 :D
链路状态
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