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The strategy of allowing processes that are logically runnable to be temporarily suspended is called

  • A.preemptive scheduling
  • B.non preemptive scheduling
  • C.shortest job first
  • D.first come first served

Answer: A

Correct answer: preemptive scheduling

Under preemptive scheduling the operating system may take the processor away from a process that is still perfectly able to run - when its time slice expires or a higher-priority process becomes ready - and give it to another. Non-preemptive scheduling lets a process keep the processor until it blocks or finishes.

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