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GATE Computer Science (CS) 2017 Shift 1 Solved Paper

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Question : 55

Total: 65

The values of parameters for the Stop-and-Wait ARQ protocol are as given below:
Bit rate of the transmission channel = 1 Mbps.
Propagation delay from sender to receiver = 0.75 ms.
Time to process a frame = 0.25 ms.
Number of bytes in the information frame = 1980
Number of bytes in the acknowledge frame = 20
Number of overhead bytes in the information frame = 20
Assume that there are no transmission errors. Then. The transmission efficiency (expressed in percentage) of the stop-and – Wait ARQ [protocol for the above parameters in _____ (correct to 2 decimal places).

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