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A scheduling algorithm assigns priority proportional to the waiting time of a process. Every
process starts with priority zero(the lowest priority). The scheduler re-evaluates the process
priorities every T time units and decides the next process to schedule. Which one of the
following is TRUE if the processes have no I/O operations and all arrive at time zero?
process starts with priority zero(the lowest priority). The scheduler re-evaluates the process
priorities every T time units and decides the next process to schedule. Which one of the
following is TRUE if the processes have no I/O operations and all arrive at time zero?
- a)This algorithm is equivalent to the first-come-first-serve algorithm
- b)This algorithm is equivalent to the round-robin algorithm
- c)This algorithm is equivalent to the shortest-job-first algorithm
- d)This algorithm is equivalent to the shortest-remaining-time-first algorithm
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
A scheduling algorithm assigns priority proportional to the waiting ti...
The given scheduling definition takes two parameters, one is dynamically assigned process
priority and the other is ‘T’ time unit to re-evaluate the process priorities.
This dynamically assigned priority will be deciding processes order in ready queue of round
robin algorithm whose time quantum is same as ‘T’ time units. As all the processes are
arriving at the same time, they will be given same priority but soon after first ‘T’ time burst
remaining processes will get higher priorities
priority and the other is ‘T’ time unit to re-evaluate the process priorities.
This dynamically assigned priority will be deciding processes order in ready queue of round
robin algorithm whose time quantum is same as ‘T’ time units. As all the processes are
arriving at the same time, they will be given same priority but soon after first ‘T’ time burst
remaining processes will get higher priorities
Most Upvoted Answer
A scheduling algorithm assigns priority proportional to the waiting ti...
Explanation:
To understand why the given scheduling algorithm is equivalent to the round-robin algorithm, let's analyze how the algorithm works.
Scheduling Algorithm:
- The algorithm assigns priority to each process based on its waiting time.
- Every process starts with priority zero.
- The scheduler re-evaluates the process priorities every T time units and decides the next process to schedule.
Round-Robin Algorithm:
- The round-robin algorithm assigns a fixed time quantum to each process.
- Processes are scheduled in a circular manner, with each process receiving the CPU for the time quantum.
- If a process completes its time quantum, it is moved to the back of the queue.
Equivalence:
The given scheduling algorithm can be considered equivalent to the round-robin algorithm under the following conditions:
1. The time quantum used in the round-robin algorithm is equal to T.
- Since the scheduling algorithm re-evaluates priorities every T time units, it can be considered similar to assigning a time quantum of T to each process.
2. The priority is only based on waiting time and not on any other factors.
- In the given scheduling algorithm, priority is assigned proportional to waiting time. This means that the longer a process waits, the higher its priority becomes.
- In the round-robin algorithm, all processes have equal priority, and the scheduling is based on the circular rotation of processes.
3. There are no I/O operations and all processes arrive at time zero.
- This condition is mentioned in the question and is important to establish the equivalence between the two algorithms.
- In the absence of I/O operations and with all processes arriving at the same time, there is no need for any special handling of processes based on their burst times or arrival times.
Considering these conditions, it can be concluded that the given scheduling algorithm is equivalent to the round-robin algorithm.
To understand why the given scheduling algorithm is equivalent to the round-robin algorithm, let's analyze how the algorithm works.
Scheduling Algorithm:
- The algorithm assigns priority to each process based on its waiting time.
- Every process starts with priority zero.
- The scheduler re-evaluates the process priorities every T time units and decides the next process to schedule.
Round-Robin Algorithm:
- The round-robin algorithm assigns a fixed time quantum to each process.
- Processes are scheduled in a circular manner, with each process receiving the CPU for the time quantum.
- If a process completes its time quantum, it is moved to the back of the queue.
Equivalence:
The given scheduling algorithm can be considered equivalent to the round-robin algorithm under the following conditions:
1. The time quantum used in the round-robin algorithm is equal to T.
- Since the scheduling algorithm re-evaluates priorities every T time units, it can be considered similar to assigning a time quantum of T to each process.
2. The priority is only based on waiting time and not on any other factors.
- In the given scheduling algorithm, priority is assigned proportional to waiting time. This means that the longer a process waits, the higher its priority becomes.
- In the round-robin algorithm, all processes have equal priority, and the scheduling is based on the circular rotation of processes.
3. There are no I/O operations and all processes arrive at time zero.
- This condition is mentioned in the question and is important to establish the equivalence between the two algorithms.
- In the absence of I/O operations and with all processes arriving at the same time, there is no need for any special handling of processes based on their burst times or arrival times.
Considering these conditions, it can be concluded that the given scheduling algorithm is equivalent to the round-robin algorithm.
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A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer?
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A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer?.
A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A scheduling algorithm assigns priority proportional to the waiting time of a process. Everyprocess starts with priority zero(the lowest priority). The scheduler re-evaluates the processpriorities every T time units and decides the next process to schedule. Which one of thefollowing is TRUE if the processes have no I/O operations and all arrive at time zero?a)This algorithm is equivalent to the first-come-first-serve algorithmb)This algorithm is equivalent to the round-robin algorithmc)This algorithm is equivalent to the shortest-job-first algorithmd)This algorithm is equivalent to the shortest-remaining-time-first algorithmCorrect answer is option 'B'. Can you explain this answer?.
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