JKSSB Mock Tests

What fundamental conceptual difference exists between a Mutex and a Semaphore in thread synchronization?

A. A Mutex works over networks, Semaphores are local
B. A Mutex involves strict ownership (only the thread that locked it can unlock it), while a Semaphore is just a signaling counter
C. A Mutex does not halt the CPU, Semaphores do
D. A Mutex is hardware-based, Semaphores are software-based
Answer: Option B
Solution (By JKSSB Mock Tests Team)
A Mutex (Mutual Exclusion) provides exclusive access to a resource for one thread. A semaphore tracks availability of multiple identical resources.
This Question Belongs to: Computer mcqs Computer set 1

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