At which layer of the OSI model dose PPP perform?() A. Layer 3B. Layer 4C. Layer 2D. Layer 5
At which layer of the OSI model dose PPP perform?()
A. Layer 3
B. Layer 4
C. Layer 2
D. Layer 5
相关考题：
As a CCNA candidate, you will be expected to know the OSI model very well. Which of the following are associated with the application layer (layer 7) of the OSI model? (Choose two)A. TCPB. TelnetC. FTPD. PingE. IPF. UDP
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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？（）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
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