(A) 0 and n
(B) 0 and 0
(C) 1 and 1
(D) 0 and 1
Tag: OS Mcqs
Which semaphore provides mutual exclusion for accesses to the buffer pool and is initialized to the value 1?
(A) Counting
(B) Mutex
(C) Binary
(D) None of the above
Process of switching from one process to another is called?
(A) Scheduling
(B) Quantum period
(C) Context switching
(D) Latency
Which register holds the smallest legal physical memory address for a process?
(A) Limit Register
(B) Base Register
(C) Status Register
(D) None of the above
A __ is a software generated interrupt caused either by an error or by a user request for an operating system service.
(A) Trap
(B) Signal
(C) Process
(D) Interrupt
Which scheduler selects processes which have to be brought in the ready queue?
(A) Short term scheduler
(B) Medium term scheduler
(C) Long term scheduler
(D) None of the above
A process issues an I/O request when?
(A) When it is in waiting queue
(B) When it is placed in I/O queue
(C) When it is placed in a ready queue
(D) None of the above
A parent process can utilize which system call to determine the termination of a child process?
(A) Fork
(B) Exit
(C) Run
(D) Wait