A semaphore is a shared integer variable
A)that can not drop below zero
B)that can not be more than zero
C)that can not drop below one
D)that can not be more than one

Question

Quizplus · Accepted Answer

Semaphores are synchronization tools in concurrent programming that can indeed drop below one but cannot drop below zero, as they are used to manage resource counts and a semaphore value less than zero would not make sense in this context.

A Semaphore Is a Shared Integer Variable