GATE & PSUs - Computer Science & Information Technology (CS & IT)

Medium Access Control & CSMA/CD question bank (Computer Networks)

Practice 6 free GATE & PSUs - Computer Science & Information Technology (CS & IT) Computer Networks - Medium Access Control & CSMA/CD questions with answers and step-by-step solutions.

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Q1.
[Medium Access Control & CSMA/CD Concept 3] In a Stop-and-Wait ARQ protocol, the transmission delay $T_t = 1\text{ ms}$ and one-way propagation delay $T_p = 49.5\text{ ms}$. If acknowledgment packets have negligible transmission time and no packets are lost, what is the channel utilization?

(A)
$1.0\%$
(B)
$2.0\%$
(C)
$10.0\%$
(D)
$50.0\%$
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Q2.
[Medium Access Control & CSMA/CD Concept 9] In a Stop-and-Wait ARQ protocol, the transmission delay $T_t = 1\text{ ms}$ and one-way propagation delay $T_p = 49.5\text{ ms}$. If acknowledgment packets have negligible transmission time and no packets are lost, what is the channel utilization?

(A)
$1.0\%$
(B)
$2.0\%$
(C)
$10.0\%$
(D)
$50.0\%$
Show answer & solution
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