OSG202Xuất hiện trong 1 đề thi
Which of the following statements about semaphores is true?
Các lựa chọn
AP and V (Down and Up) operations should be indivisible operations
BIf several processes attempt a P(S) operation simultaneously, only one process should be allowed to proceed.
CA semaphore implementation should guarantee that processes do not suffer indefinite postponement.
DAll of the other choices