Which of the following statements is/are true about preemptive type process…
2022
Which of the following statements is/are true about preemptive type process scheduling in an operating system?
(i) In preemptive scheduling, the utilisation of CPU is low.
(ii) Shortest Job First process scheduling is an example of preemptive scheduling.
Answer: D. Neither (i) nor (ii) — Statement (i) is false because preemptive scheduling typically improves CPU utilization by allowing context switches to prioritize shorter jobs. Statement…
- A.
Only (i)
- B.
Only (ii)
- C.
Both (i) and (ii)
- D.
Neither (i) nor (ii)
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Correct answer: D
Statement (i) is false because preemptive scheduling typically improves CPU utilization by allowing context switches to prioritize shorter jobs. Statement (ii) is false since Shortest Job First (SJF) is non-preemptive by default; its preemptive variant is Shortest Remaining Time First (SRTF). Thus, neither statement is correct.
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