Which of the following scheduling policies allow the O/S to interrupt the currently running process and move it to the Ready state?Select one:A.preemptiveB.FCFSC.FIFOD.non-preemptive
Question
Which of the following scheduling policies allow the O/S to interrupt the currently running process and move it to the Ready state?Select one:A.preemptiveB.FCFSC.FIFOD.non-preemptive
Solution
The correct answer is A. Preemptive.
In a preemptive scheduling policy, the operating system has the ability to interrupt the currently running process and move it back to the Ready state. This is typically done to allow a higher priority process to run.
In contrast, non-preemptive (D) scheduling does not allow the operating system to interrupt a running process. Once a process starts running, it continues until it has finished or it voluntarily gives up control.
First-Come, First-Serve (FCFS) (B) and First In, First Out (FIFO) (C) are types of scheduling policies, but they do not specify whether the policy is preemptive or non-preemptive. FCFS and FIFO could be either preemptive or non-preemptive, depending on the specific implementation.
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