计算机类考试2022思科认证模拟考试练习题244

1. [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)

A. To determine the status of network services on a remote device
B. To obtain the IP Address of a connected device in order to telnet to the device
C. To verify the type of cable interconnecting two devices
D. To verify Layer 2 connectivity between two devices when Layer 3 fails
E. To obtain VLAN information from directly connected swticehs
F. F. To determine the status of the routing protocols between directly connected routers
G. G. To support automatic network failover during outages

2. [单选题]地址转换NAT的优点是()

A. 地址转换对于报文内容中含有有用的地址信息的情况很难处理
B. 地址转换可以缓解地地址短缺的问题
C. 地址转换不能处理IP报头加密的情况
D. 地址转换由于隐藏了内部主机地址，有时会使网络调试变得复杂

3. [单选题]VLAN主干协议VTP的默认工作模式是()

A. 服务器模式
B. 客户端模式
C. 透明模式
D. 以上三者都不是

4. [单选题]IP地址为：192.168.50.70，掩码为：255.255.255.248，则该IP地址所在子网的广播地址为（）

A. 192.168.50.32
B. 192.168.80.64
C. 192.168.50.96
D. 192.168.50.71

5. [单选题]RIP协议的管理距离是（）

A. 100
B. 110
C. 120
D. 150

6. [多选题]下列哪一设备工作时，要用到OSI的七个层（一层到七层）（）

A. PC
B. 网管机
C. WEB服务器
D. 交换机
E. 路由器

7. [单选题]两台路由器直连到一起，应该使用的线缆为（）

A. 交叉线缆
B. 直通线缆
C. 反转线缆
D. 任意线缆

8. [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

9. [多选题]Using a subnet mask of 255.255.255.224, which of the IP addresses below can you assign to the hosts on this subnet? (Select all that apply)

A. 16.23.118.63
B. 87.45.16.159
C. 92.11.178.93
D. 134.178.18.56
E. 192.168.16.87
F. F. 217.168.166.192

10. [单选题]After logging into a router and typing in a few show commands, you press the up arrow key. What will this do?

A. It will recall the previous command line
B. It will move the cursor one line up
C. It will redisplay the current command line
D. It will capitalize the command line
E. None of the above

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