【名词&注释】
路由器(router)、交换机(switch)、配置文件(configuration file)、源地址(source address)
[单选题]An administrator issues the show ip interface s0/0 command and the output displays that interface Serial0/0 is up, line protocol is up.What does "line protocol is up" specifically indicate about the interface?
A. The cable is attached properly.
B. CDP has discovered the connected device.
C. Keepalives are being received on the interface.
D. A carrier detect signal has been received from the connected device.
E. IP is correctly configured on the interface.
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举一反三：
[单选题]为了查看路由器的E0端口上，是否挂接了访问权限表，应该使用的命令是（）
A. show access-list
B. show interface e0
C. show ipinterface e0
D. show e0
[单选题]Why might the Ezonexam network administrator set the configuration register to 0x2142 on a 2600 series Cisco router?
A. To boot the IOS from ROM
B. To reset the console password
C. To upload a new version of the configuration file
D. To upload a new version of the IOS
E. To allow a new memory upgrade to be recognized by the router
[单选题]访问控制列表分为标准和扩展两种。下面关于ACL的描述中，错误的是()。
A. 标准ACL可以根据分组中的IP源地址(source address)进行过滤
B. 扩展ACL可以根据分组中的IP目标地址进行过滤
C. 标准ACL可以根据分组中的IP目标地址进行过滤
D. 扩展ACL可以根据不同的上层协议信息进行过滤
[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（）
A. copy ios tftp
B. copy running-configt ftp
C. copy flash tftp
D. copy config tftp
[单选题]基本IP访问权限表的表号范围是：()
A. 1—100
B. 1-99
C. 100-199
D. 800-899
[多选题]As a Ezonexam trainee you are required to set the default gateway on a Cisco switch to the IP address of 192.168.1.115. Which IOS command should you use?
A. TestKSwitch(config) ip route-default 192.168.1.115
B. TestKSwitch(config) ip default-gateway 192.168.1.115
C. TestKSwitch(config) ip route 192.168.1.115 0.0.0.0
D. TestKSwitch(config) ip default-network 192.168.1.115
E. None of the above
[单选题]From where does a small network typically get its IP network addresses or IP block?
A. From the Internet Domain Name Registry (IDNR)
B. From the Internet Assigned Numbers Authority (IANA．
C. From the Internet Service Provider (ISP)
D. From the Internet Architecture Board (IAB．
E. None of the above
[单选题]路由器上激活端口的命令是（）
A. shutdown
B. no shutdown
C. up
D. noup
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