哪个命令可以成功测试网络：()

【名词&注释】

路由器(router)、优先级(priority)、通配符(wildcard)、专用线路(dedicated line)、优先选择(priority selection)

[单选题]哪个命令可以成功测试网络：()

A. Router>ping192.5.5.0
B. Routerping192.5.5.30
C. Router>ping192.5.5.256
D. Routerping192.5.5.255

查看答案&解析查看所有试题

学习资料：

[单选题]下列哪一个通配符掩码与子网172.16.64.0/27的所有主机匹配（）。

A. 255.255.255.0
B. 255.255.224.0
C. 0.0.0.31
D. 0.0.31.255

[单选题]关于OSPF中DR的说法不正确的是（）

A. 通过hello报文选举DR
B. 如果某路由器优先级比DR优先级高，但启动晚，它会抢占原来的DR自己成为DR
C. 一个广播类型网络中只能有一个DR
D. 一旦DR失效，BDR接替DR的工作，并重新选举一个BDR

[单选题]如果网络中的路由器都是cisco路由器，则优先选择^{(priority selection)}哪一个路由协议（）

A. RIP
B. EIGRP
C. IGRP
D. OSPF

[多选题]网络中经常使用DDN服务，请选出DDN的优点（）

A. 传输质量高
B. 接入方式灵活
C. 偷占带宽
D. 使用虚电路
E. 专用线路

[多选题]You have just installed a new web server on the Ezonexam network. You are required to ensure that the web server is accessible from the Internet. The network uses private addressing, so an IP-to-registered address mapping is required.To do this, you enter the following command:

A. Ezonexam(config) ip nat inside source static 192.168.2.1
B. 198.18.1.254
C. You unsuccessfully try to ping the Internet from a PC host on the LAN. During the troubleshooting process, you enter the "show ip nat translations" command but the output is blank.
D. What is the most likely cause of the problem?
E. The keyword overload is missing from the command.
F. The NAT pool must be defined first.
G. An access list must be defined to create static NAT translations.
H. The interfaces must be configured for NAT.
I. None of the above

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