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Both TCP and UDP belong to ( ) layer of the OSI mode。
A.session
B.transport
C.network
D.data link
B.transport
C.network
D.data link
参考答案
参考解析
解析：翻译：
TCP and UDP都属于OSI网络模型中的（ ）。
A. 会话层 B. 传输层 C. 网络层 D. 数据链路层
TCP and UDP都属于OSI网络模型中的（ ）。
A. 会话层 B. 传输层 C. 网络层 D. 数据链路层
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