Question

The signal operation of the semaphore basically works on the basic _______ system call.

a) continue()
b) wakeup()
c) getup()
d) start()

Answer 1

The main answer to the question is that the semaphore signal operation utilizes the 'wakeup()' system call to notify and allow another process to access the shared resource it was waiting for.

Step-by-step explanation:

The signal operation of the semaphore basically works on the basic wakeup() system call. Semaphores are synchronization primitives used in concurrent programming to control access to shared resources and prevent race conditions. When a process completes its use of shared resources, it can perform a signal operation, which triggers a wakeup() system call. This call wakes up another process that was waiting for access to the same resources, allowing for safe and synchronized operations among concurrent processes.