TCP协议工作在OSI参考模型中的（ ）。
- A.物理层
- B.传输层
- C.应用层
- D.网络层
正确答案及解析
正确答案
解析
本题考查OSI参考模型。
TCP协议和UDP协议同属于传输层协议，主要功能是实现端到端连接，故本题选B。
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