Two atomic operations permissible on Semaphores are
Options
- A. wait, stop
- B. wait, hold
- C. wait, signal
- D. More than one of the above
- E. None of the above
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Quiz Practice:
Correct Answer (Detailed Explanation is Below)
C. wait, signal
Detailed Explanation
In Operating Systems (OS), a semaphore is a synchronization mechanism used to control access to shared resources by multiple processes or threads.
The two atomic operations are:
Wait (P operation): Decreases the semaphore value. If the resource is unavailable, the process may have to wait.
Signal (V operation): Increases the semaphore value and may wake up a waiting process.