Question

What is a mutex?

(a) is a binary mutex

(b) must be accessed from only one process

(c) can be accessed from multiple processes

(d) none of the mentioned

I had been asked this question in unit test.

My question is from Semaphores topic in section Process Synchronization of Operating System

Answer 1

Right choice is (b) must be accessed from only one process

The explanation is: None.