MPEG协议属于开放系统互联参考模型（OSI）的（ ）。
- A.网络层
- B.传输层
- C.应用层
- D.表示层
正确答案及解析
正确答案
解析
物理层具体标准：RS232、V.35、RJ-45、FDDI。
数据链路层常见协议有：IEEE802.3/.2、HDLC、PPP、ATM。
网络层具体协议有：IP、ICMP、IGMP、IPX、ARP等。
传输层具体协议有：TCP、UDP、SPX。
会话层常见的协议有：RPC、SQL、NFS（部分观点认为属于5层）。
表示层常见的协议有：JPEG、ASCII、GIF、DES、MPEG。
应用层常见协议有：HTTP、Telnet、FTP、SMTP、NFS。
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