48. 滑動訊窗(Sliding window)協定中,於發送者側,上一訊框發送(LastFrame Sent, LFS)、上一確認收到(Last Acknowledgement Received,LAR)與發送訊窗大小(Send Window Size, SWS)三者間的關係為何?
(A)SWS–LAR<LFS
(B)SWS+LAR<LFS
(C)LFS+LAR<=SWS
(D)LFS–LAR<=SWS 。
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統計: A(0), B(0), C(2), D(1), E(0) #3656106
統計: A(0), B(0), C(2), D(1), E(0) #3656106