GATE 1991
May 7, 2024
Question 7116 – Computer-Networks
May 7, 2024
GATE 1991
May 7, 2024
Question 7116 – Computer-Networks
May 7, 2024

Congestion-Control

Question 5
A node X on a 10 Mbps network is regulated by a token bucket. The token bucket is filled at a rate of 2 Mbps. Token bucket is initially filled with 16 megabits. The maximum duration taken by X to transmit at full rate of 10 Mbps is _________ secs.
A
1
B
2
C
3
D
4
Question 5 Explanation: 
Given data,
— A node X on a 10 Mbps network is regulated by a token bucket.
— Filled rate=2 Mbps
— Initially token bucket filled time= 16 Megabits
— Maximum duration time=?
Step-1: Maximum duration time= Initially token bucket filled time / (Regulated token time-Filled rate)
= 16 / (10-2)
= 16 / 8
= 2 seconds
Correct Answer: B
Question 5 Explanation: 
Given data,
— A node X on a 10 Mbps network is regulated by a token bucket.
— Filled rate=2 Mbps
— Initially token bucket filled time= 16 Megabits
— Maximum duration time=?
Step-1: Maximum duration time= Initially token bucket filled time / (Regulated token time-Filled rate)
= 16 / (10-2)
= 16 / 8
= 2 seconds

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