题目内容
____ is the byte sequence numbers of next byte expected from other side.
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Because TCP only acknowledges bytes up to the first missing byte in the stream, TCP is said to provide ____ acknowledgements.
Fast retransmit means in the case that ____ duplicate ACK-s are received, the TCP sender resend segment before timer expires.
TCP____ means sender won’t overflow receiver’s buffer by transmitting too much, too fast.
TCP provides flow control by having the sender maintain a variable called the ____.
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