Directions (Q36–40): A 3000 km long trunk operates at 1.536 Mbps and is used to transmit 64-byte frames using a sliding window protocol. The propagation delay is 6 μs/km.
If only 6 bits are reserved for the sequence number field, the efficiency of the system is
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Correct answer: A. 0.587
Explanation
6 bits allow a window of 64. Efficiency = 64 / 109 ≈ 0.587.More Data Communication and Computer Networks questions
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