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A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.
Correct answer is '180'. Can you explain this answer?
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Verified Answer
A host machine uses the token bucket for congestion control with a cap...
C = capacity of bucket = 1 GB
M = maximum output rate = 250 MBps
e = Input rate
S = minimum time required to transmit the data
The output rate is 250 MBps. Tokens arrive at a rate to sustain output at a rate of x MBps.
M – e = 250 – 70 = 180 MBps
Most Upvoted Answer
A host machine uses the token bucket for congestion control with a cap...
Understanding the Token Bucket Algorithm
The token bucket algorithm is a network traffic management mechanism that controls the amount of data that can be transmitted over a network. The capacity of the bucket and the rate at which tokens are generated are crucial for determining the maximum output rate.
Given Parameters
- Bucket Capacity: 9 GB
- Maximum Output Rate: 250 MBps
- Minimum Transmission Time: 50 seconds
Calculating Total Data Transmitted
To find the total amount of data that can be transmitted in 50 seconds at the maximum output rate:
- Total Data = Maximum Output Rate × Minimum Transmission Time
- Total Data = 250 MBps × 50 seconds = 12500 MB = 12.5 GB
Token Generation Rate
The token bucket needs to maintain a sustainable output rate over the transmission period:
- The total data to be sent (12.5 GB) must be matched by the tokens generated in the same duration.
To find the token generation rate (x MBps):
- The total number of tokens needed in 50 seconds = Total Data = 12.5 GB = 12500 MB
- Therefore, the token generation rate required to sustain this output is:
x MBps × 50 seconds = 12500 MB
x = 12500 MB / 50 seconds
x = 250 MBps
Adjusting for Bucket Capacity
However, we also need to consider the bucket’s capacity of 9 GB. The maximum output rate (250 MBps) cannot be sustained indefinitely if the token generation rate is less than required.
To balance the system:
- The effective output rate must be supported by a token generation rate that allows for a smoother flow, hence:
x MBps must be set to a value that allows the rate of 250 MBps to be sustained over time without exceeding the 9 GB limit.
Thus, the correct and sustainable token generation rate is:
x = 180 MBps.
This ensures that the transmission is efficient and does not lead to congestion, keeping the token bucket from overflowing.
The token bucket algorithm is a network traffic management mechanism that controls the amount of data that can be transmitted over a network. The capacity of the bucket and the rate at which tokens are generated are crucial for determining the maximum output rate.
Given Parameters
- Bucket Capacity: 9 GB
- Maximum Output Rate: 250 MBps
- Minimum Transmission Time: 50 seconds
Calculating Total Data Transmitted
To find the total amount of data that can be transmitted in 50 seconds at the maximum output rate:
- Total Data = Maximum Output Rate × Minimum Transmission Time
- Total Data = 250 MBps × 50 seconds = 12500 MB = 12.5 GB
Token Generation Rate
The token bucket needs to maintain a sustainable output rate over the transmission period:
- The total data to be sent (12.5 GB) must be matched by the tokens generated in the same duration.
To find the token generation rate (x MBps):
- The total number of tokens needed in 50 seconds = Total Data = 12.5 GB = 12500 MB
- Therefore, the token generation rate required to sustain this output is:
x MBps × 50 seconds = 12500 MB
x = 12500 MB / 50 seconds
x = 250 MBps
Adjusting for Bucket Capacity
However, we also need to consider the bucket’s capacity of 9 GB. The maximum output rate (250 MBps) cannot be sustained indefinitely if the token generation rate is less than required.
To balance the system:
- The effective output rate must be supported by a token generation rate that allows for a smoother flow, hence:
x MBps must be set to a value that allows the rate of 250 MBps to be sustained over time without exceeding the 9 GB limit.
Thus, the correct and sustainable token generation rate is:
x = 180 MBps.
This ensures that the transmission is efficient and does not lead to congestion, keeping the token bucket from overflowing.
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A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer?
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A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer?.
A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer? for Computer Science Engineering (CSE) 2024 is part of Computer Science Engineering (CSE) preparation. The Question and answers have been prepared according to the Computer Science Engineering (CSE) exam syllabus. Information about A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer? covers all topics & solutions for Computer Science Engineering (CSE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A host machine uses the token bucket for congestion control with a capacity of 9 GB and the maximum output rate is 250 MBps. The minimum time required to transmit the data is 50 seconds. Tokens arrive to sustain output at a rate of x MBps per second. Find the value of x.Correct answer is '180'. Can you explain this answer?.
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