[单选题]查看E0端口配置信息的命令是：()

正确答案 ：D

show interfacee0

[单选题]下列命令中，无法正确执行的是（）

正确答案 ：A

Router(config)show run

[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:

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