TCP是互联网中的传输层协议，TCP协议进行流量控制的方法是( )。
- A.使用停等ARQ协议
- B.使用后退N帧ARQ协议
- C.使用固定大小的滑动窗口协议
- D.使用可变大小的滑动窗口协议
正确答案及解析
正确答案
解析
TCP使用可变大小的滑动窗口协议来进行流量控制。这种流控方案把肯定应答信号与控制窗口滑动的信号分开处理，在控制数据流动速率方面给接收方提供了更大的自由度。在基础网络可靠的情况下，这种控制策略能产生平滑的数据流动，在基础网络不可靠时，它还是一种差错控制手段。
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