计算机类考试2022思科认证模拟试卷261

1. [单选题]常见的LSA有几种类型()

A. 4
B. 5
C. 6
D. 7

2. [单选题]关于静态NAT，下面（）说法是正确的。

A. 静态NAT转换在缺省情况下24小时后超时
B. 静态NAT转换从地址池中分配
C. 静态NAT将内部地址一对一^{(one to one)}静态映射到内部全局地址
D. CISCO路由器缺省使用了静态NAT

3. [单选题]标准访问控制列表的数字标识范围是（）。

A. 1-50
B. 1-99
C. 1-100
D. 1-199

4. [单选题]在路由器上，命令show access-list的功能是（）

A. 显示访问控制列表内容
B. 显示路由表内容
C. 显示端口配置信息
D. 显示活动配置文件

5. [单选题]路由器“全局模式”的提示符为（）

A. >
C. (config)
D. (config-router)

6. [单选题]下面有关交换机的描述中，正确的是（）

A. 所有交换机都支持VLAN功能
B. 交换机端口数量最多为48口
C. 交换机独占带宽
D. 交换机端口的最大速率为100Mbit/s

7. [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

8. [单选题]You are a senior network administrator at Ezonexam, and while performing the password recovery procedure on your 2500 series Cisco router, you type in the following command:o/r 0x2142

A. What is the purpose of this command?
B. It is used to restart the router.
C. It is used to bypass the configuration in NVRAM.
D. It is used to enter ROM Monitor mode.
E. It is used to view the lost password.
F. It is used to save the changes to the configuration.

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