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Data-Structures
October 11, 2023
GATE 2021 CS-Set-1
October 11, 2023
Data-Structures
October 11, 2023
GATE 2021 CS-Set-1
October 11, 2023

Operating-Systems

Question 263
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.
Operating-SystemsCPU-SchedulingGATE 2021 CS-Set-2Video-Explanation
Question 263 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 263 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. 
SHYAM LAL
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