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Hashing
October 11, 2023
Aptitude
October 11, 2023
Hashing
October 11, 2023
Aptitude
October 11, 2023

GATE 2021 CS-Set-2

Question 54
Which of the following statement(s) is/are correct in the context of CPU scheduling?
A
Implementing preemptive scheduling needed hardware support.
B
Turnaround time includes waiting time
C
Round-robin policy can be used even when the CPU time required by each of the processes is not known apriori.
D
The goal is to only maximize CPU utilization and minimize throughput.
Question 54 Explanation: 
  1. True. Preemptive scheduling needs hardware support such as a timer
  2. True. Turnaround time = Burst time + Waiting time 
  3. True, RR assigns qunatume to each process equally. Hence, it is not required to know burst size apriori
  4. False. Maximize CPU utilization and throughput, and minimize waiting time etc. 
Correct Answer: C
Question 54 Explanation: 
  1. True. Preemptive scheduling needs hardware support such as a timer
  2. True. Turnaround time = Burst time + Waiting time 
  3. True, RR assigns qunatume to each process equally. Hence, it is not required to know burst size apriori
  4. False. Maximize CPU utilization and throughput, and minimize waiting time etc. 

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