正确答案: A

encap ppp

题目：配置路由器时，封装PPP协议的命令是：()

解析：A

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学习资料的答案和解析：

[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)

To obtain the IP Address of a connected device in order to telnet to the device

To verify Layer 2 connectivity between two devices when Layer 3 fails

[单选题]哪个命令可以成功测试网络：()

Routerping192.5.5.30

[单选题]下列对RIP的配置中，合法的命令是（）

router rip network 10.12.0.0

[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?

Router configuration-register set to bypass startup configuration

解析：解析：Explanation:

[多选题]Why is full-duplex Ethernet superior to its single-duplex counterpart? (Select two answer choices.)

It operates without collisions

It provides faster data transfer

解析：解析：Explanation: