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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举一反三的答案和解析：

[单选题]基本IP访问权限表的表号范围是：()

1-99

[多选题]What are two characteristics of "store and forward" switching? (Select two answer choices)

The switch receives the complete frame. before beginning to forward it.

Latency through the switch varies with frame. length.

解析：解析：Explanation:

[单选题]During the boot sequence, a Ezonexam 2800 series router needs to locate and load an operating system. What is the default order the router uses to find an operating system?

Flash, TFTP server, ROM

解析：解析：Explanation:BootinguptheRouter:CiscorouterscanbootCiscoIOSsoftwarefromtheselocations:1.Flashmemory2.TFTPserver3.ROM(notfullCiscoIOS)Multiplesourceoptionsprovideflexibilityandfallbackalternatives.

[单选题]下面哪个操作可以使访问控制列表真正生效（）。

将访问控制列表应用到接口上

[单选题]在地址转换中，()用来规定哪些数据包需要进行地址转换

访问控制列表

[单选题]The Ezonexam LAN is upgrading all devices to operate in full duplex. Which statement is true about full-duplex Ethernet in comparison to half-duplex Ethernet?

Full-duplex Ethernet can provide higher throughout than can half-duplex Ethernet of the same bandwidth

[单选题]On a half-duplex Ethernet LAN, two hosts attempt to send data simultaneously, resulting in a collision. Following this collision, what will the hosts do? (Select all valid answers)

The hosts will attempt to resume transmission after a time delay has expired.

解析：C 解析：Explanation:

[单选题]TELNET工作在OSI哪一层（）

应用层

[单选题]What is the purpose of the Spanning Tree Protocol (STP)?

To maintain a loop-free Layer 2 network topology

解析：解析：Explanation: