2022计算机思科认证网络工程师精编在线题库(05月17日)

1. [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^{(client mode)}
C. 透明模式
D. 以上三者都不是

2. [多选题]How could the Ezonexam corporation benefit from using VLANs on their network?(Select three answer choices.)

A. VLANs allow access to network services based on department, not physical location.
B. VLANs utilize packet filtering to enhance network security.
C. VLANs provide a low-latency, high bandwidth internetworking alternative.
D. VLANs provide a method of communication between IP addresses in large networks.
E. VLANs establish segmented broadcast domains in switched networks.
F. F. VLANs can greatly simplify adding, moving, or changing hosts on the network.

3. [单选题]哪一个命令可以设置路由器特权用户的“明文密码”（）

A. enable password
B. password
C. enable secret
D. secret

4. [单选题]TELNET工作在OSI哪一层（）

A. 会话层
B. 表示层
C. 传输层
D. 应用层

5. [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

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