[单选题]常见的LSA有几种类型()

正确答案 ：C

6

[单选题]标准访问控制列表的数字标识范围是（）。

正确答案 ：B

1-99

[单选题]配置路由器时，封装PPP协议的命令是：()

正确答案 ：A

encap ppp

[单选题]路由器上端口fa0/0,其最大传输速率是（）Mbit/s

正确答案 ：C

100

[单选题]帧中继环境中，CIR的含义是（）

正确答案 ：B

保证线路速率

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

正确答案 ：AE

VLANs allow access to network services based on department, not physical location.

VLANs establish segmented broadcast domains in switched networks.

解析：A,E,F 解析：Explanation:

[多选题]As the Ezonexam network administrator, you are required to have a firm understanding of the OSI model. Why does the data communication industry use the layered OSI reference model? (Choose two)

正确答案 ：BC

It encourages industry standardization by defining what functions occur at each layer of the model

It divides the network communication process into smaller and simpler components; thus aiding component development, design and troubleshooting

解析：解析：Explanation:

[多选题]With regard to Ethernet media access methods, which of the following are true?(Choose all that apply.)

正确答案 ：BC

A device listens and waits until the media is not busy before transmitting.

All devices on an Ethernet segment see data that passes on the network medium.

解析：解析：Explanation:

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

正确答案 ：D

To maintain a loop-free Layer 2 network topology

解析：解析：Explanation:

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