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GATE 2008 Q
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closed with the note: Instructed u repeatedly not to post duplicate question..If u have any doubt , then comment on that link of the question itself.

Q. A 1Mbps satellite link connects two ground stations. The altitude of the satellite is 36,504 km and speed of the signal is 3 × 108 m/s. What should be the packet size for a channel utilization of 25% for a satellite link using go-back-127 sliding window protocol? Assume that the acknowledgment packets are negligible in size and that there are no errors during communication.

A

120 bytes
B

60 bytes

C

240 bytes

D

90 byte
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