[单选题]路由器上的命令“show version”的功能是（）

正确答案 ：A

显示版本信息

[单选题]RIP协议的管理距离是（）

正确答案 ：B

110

[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?

正确答案 ：C

Router configuration-register set to bypass startup configuration

解析：解析：Explanation:

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