Q
A pure ALOHA network transmits 200-bit frames on a shared channel of 200 kbps. What is the requirement to make this frame collision-free?
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A
A. 2msec
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B
B. 4msec
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C
C. 2sec
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D
D. 4sec
Correct Answer:
A. A. 2msec
Explanation:
Average frame transmission time Tfr = 200 bits/200 kbps or 1 ms Vulnerable time = 2x Tfr = 2 × 1 ms = 2 ms.