A link has a transmission speed of 106 bits/sec. It uses data packets of size 1000 bytes each. Assume that the acknowledgment has negligible transmission delay, and that its propagation delay is the same as the data propagation delay. Also assume that the processing delays at nodes are negligible. The eciency of the stop-and-wait protocol in this setup is exactly 25%. The value of the oneway propagation delay (in milliseconds) is .....

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

A link has a transmission speed of 106 bits/sec. It uses data packets of size 1000 bytes each. Assume that the acknowledgment has negligible transmission delay, and that its propagation delay is the same as the data propagation delay. Also assume that the processing delays at nodes are negligible. The eciency of the stop-and-wait protocol in this setup is exactly 25%. The value of the oneway propagation delay (in milliseconds) is ____

A	4
B	8
C	12
D	16

Explanation:

Detailed explanation-1: -Propagation delay is equal to d / s where d is the distance and s is the wave propagation speed. In wireless communication, s=c, i.e. the speed of light.

Detailed explanation-2: -Latency is the delay between a user’s action and a web application’s response to that action, often referred to in networking terms as the total round trip time it takes for a data packet to travel.

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