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The wait operation of the semaphore basically works on the basic _______ system call.

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in Operating System by (102k points)
The wait operation of the semaphore basically works on the basic _______ system call.

(a) stop()

(b) block()

(c) hold()

(d) wait()

This question was posed to me during an online interview.

Origin of the question is Semaphores topic in chapter Process Synchronization of Operating System

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Best answer
Right option is (b) block()

To explain I would say: None.

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