ICMP and IGMP belong to which layer of the OSI model? ICMP和IGMP协议在OSI模型中属于那层?()
- A、Datagram Layer.数据报文层
- B、Network Layer.网络层
- C、DataLink Layer.数据链路层
- D、Transport Layer.传输层
正确答案:B
答案解析:有

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ICMP and IGMP belong to which layer of the OSI model? ICMP和IGMP协议在OSI模型中属于那层?()
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