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In which semaphore, the wait operation works only if semaphore = 1, and the signal operation succeeds when semaphore= 0?

78. In which semaphore, the wait operation works only if semaphore = 1, and the signal operation succeeds when semaphore= 0?

1. Counting semaphores
2. Binary semaphores

Answer: B) Binary semaphores

Explanation:

In binary semaphore, the wait operation works only if semaphore = 1, and the signal operation succeeds when semaphore= 0.