Question

What do semaphores do?

• A. Synchronize critical resources to prevent deadlock
• B. Synchronize critical resources to prevent contention
• C. Used for shutting down the computer system
• D. Used to maintain the clock speed of every process

Hint:

Semaphores are widely used in operating systems and concurrent programming to synchronize access to shared resources and prevent issues like deadlock and resource contention.

Answer 1

The Correct Option is A

Semaphores are synchronization tools used in concurrent programming to control access to shared resources, ensuring that multiple processes can safely access them without causing deadlocks. Their main role is to prevent deadlock by properly synchronizing access to critical resources.
Therefore, the correct answer is 1. Synchronize critical resources to prevent deadlock.