TRANSPORT LAYER
INTRODUCTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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send and receive window of same size
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send and receive window of different size
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Either A or B
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None of the above
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Detailed explanation-1: -In Selective Repeat ARQ, the size of the sender and receiver window must be at most one-half of 2m.
Detailed explanation-2: -The size of the receiver window in Go Back N ARQ is equal to 1. When the acknowledgment for one frame is not received by the sender or the frames received by the receiver are out of order, then the whole window starting from the corrupted frame is retransmitted.
Detailed explanation-3: -It uses two windows of equal size: a sending window that stores the frames to be sent and a receiving window that stores the frames receive by the receiver. The size is half the maximum sequence number of the frame. For example, if the sequence number is from 0 – 15, the window size will be 8.
Detailed explanation-4: -The Sender window size in the Stop and Wait protocol is 1. The Sender window size in the Go-Back-N protocol is N. The Sender window size in the Selective Repeat technique is N. The Receiver window size in the Stop and Wait protocol is 1.