1. [单选题]The 201.145.32.0 network is subnetted using a /26 mask. How many networks and IP hosts per network exists using this subnet mask?
A. 4 networks and 64 hosts
B. 64 networks and 4 hosts
C. 4 networks and 62 hosts
D. 62 networks and 2 hosts
E. 6 network and 30 hosts
2. [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?
A. Hardware failure in NVRAM prevents the router from loading the config
B. Startup-config in flash is corrupt and cannot be analyzed
C. Router configuration-register set to bypass startup configuration
D. Startup-config in NVRAM is corrupt and cannot be analyzed
E. None of the above
3. [多选题]默认情况下，IGRP衡量路径好坏时，考虑的因素为（）
A. 带宽
B. 可靠性
C. 最大传输单元
D. 延时
4. [单选题]路由器上，设置端口速率的命令是（）
A. clock rate
B. bandwidth
C. set
D. encap
5. [单选题]路由表中，某条路由的“路由代码为D”，则表明该路由为（）
A. 直连路由
B. 静态路由
C. IGRP路由
D. EIGRP路由
6. [多选题]Ezonexam is migrating to a private IP addressing scheme. Which of the following describe the use of private IP addresses? (Choose two)
A. Addresses chosen by Ezonexam.com to communicate with the Internet.
B. Addresses that cannot be routed through the public Internet.
C. Addresses that can be routed through the public Internet.
D. A scheme to conserve public addresses.
E. Addresses licensed to enterprise or ISPs by an Internet registry organization.
7. [单选题]帧中继(frame relay)环境中，CIR的含义是（）
A. 提高线路速率
B. 保证线路速率
C. 降低线路速率
D. 配置线路速率
8. [单选题]对于使用链路状态路由协议的路由器如何选择最佳路线到达子网，下列哪项是正确的（）
A. 路由器会发现链路状态数据库中的最佳路由
B. 通过针对链路状态数据库中的信息运行SPF算法，路由器会计算出最佳路由
C. 路由器将比较每个邻居接收到的更新中为子网列出的标准，并挑选最佳标准路由
D. 路由器会使用具有最低条数的路径
9. [单选题]路由器当前的模式为“端口模式”，要退回到“特权模式”，应该使用的快捷键(shortcut key)为（）
A. ctrl+b
B. ctrl+z
C. ctrl+c
D. ctrl+p
10. [单选题]标准访问控制列表应被放置的最佳位置是在（）。
A. 越靠近数据包的源越好
B. 越靠近数据包的目的地越好
C. 无论放在什么位置都行
D. 入接口方向的任何位置
