A system uses Selective-Repeat protocol with a window size of 4.If each packet carries 5000 bits of data, then the time taken to transfer 5 million bits of data, if the distance between sender and receiver is 2500 Km, the propagation speed is 2*108m/s and data rate is 1Mbps. We assume no data or ACK is lost or damaged.
(Computer Networks - 2 marks)
A. 7.25s
B. 8.25s
C. 11.25s
D. 16.25s
I think answer should be around 7.5 to 7.8.. Can any one explain what the answer is ??