After working all night and successfully configuring a Cisco

【名词&注释】

路由器(router)、集线器(hub)、交换机(switch)、物理层(physical layer)、接口类型(interface state type)、优先选择(priority selection)、数据链路层(data link layer)、第三层(layer 3)、帧中继协议(fr protocol)

[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

查看答案&解析查看所有试题

学习资料：

[单选题]交换机工作在OSI七层模型的哪一层()

A. 物理层
B. 数据链路层^{(data link layer)}
C. 网络层
D. 传输层

[单选题]工作在OSI第三层^{(layer 3)}的设备是：()

A. 网卡
B. 路由器
C. 交换机
D. 集线器

[单选题]交换机上VLAN的功能描述中，正确的是（）

A. 可以减少广播域的个数
B. 可以减少广播对网络性能的影响
C. 可以减少冲突域的个数
D. 可以减小冲突域的容量

[单选题]下列对RIP的配置中，合法的命令是（）

A. router rip 100 network 10.12.0.0
B. router rip 100 network 10.0.0.0
C. router rip network 10.12.0.0
D. router rip 100 network 10.0.0.0

[单选题]如果网络中的路由器都是cisco路由器，则优先选择哪一个路由协议（）

A. RIP
B. EIGRP
C. IGRP
D. OSPF

[多选题]在配置帧中继子接口时，在物理接口上应该配置的内容是：()

A. 配置IP地址
B. 封装帧中继协议^{(fr protocol)}
C. 指定子接口类型
D. 设定子接口
E. 配置密码

[单选题]You have just purchased a brand new router and wish to have the router prompt you through the initial configuration commands. Which router mode does this describe?

A. ROM Monitor mode
B. SETUP mode
C. Autoflash mode
D. RXBOOT mode
E. None of the above

[单选题]Given that you have a class B IP address network range, which of the subnet masks below will allow for 100 subnets with 500 usable host addresses per subnet?

A. 255.255.0.0
B. 255.255.224.0
C. 255.255.254.0
D. 255.255.255.0
E. 255.255.255.224

[单选题]A Ezonexam technician is troubleshooting connectivity problems between two routers that are directly connected through the serial line. The technician notices that the serial line is up but cannot see any neighbors displayed in the output of the show cdp neighbors command.In which OSI layer is the problem most likely occurring?

A. Physical
B. Data link
C. Network layer
D. Transport layer
E. Application layer

本文链接：https://www.51ksbd.net/show/3e4x9e.html