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GATE | GATE IT 2006 | Question 64
Suppose that it takes 1 unit of time to transmit a packet (of fixed size) on a communication link. The link layer uses a window flow control protocol with a window size of N packets. Each packet causes an ack or a nak to be generated by the receiver, and ack/nak transmission times are negligible. Further, the round trip time on the link is equal to N units. Consider time i > N. If only acks have been received till time i(no naks), then the goodput evaluated at the transmitter at time i(in packets per unit time) is
(A)
1 - N/i
(B)
i/(N + i)
(C)
1
(D)
1 - e(i/N)
Answer
Please comment below if you find anything wrong in the above post
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