Operating System MCQs

1019 MCQs  (Page 35 of 102)

What is a medium-term scheduler?
A. It selects which process has to be brought into the ready queue
B. It selects which process has to be executed next and allocates cpu
C. It selects which process to remove from memory by swapping
D. None of the mentioned
What is a short-term scheduler?
A. It selects which process has to be brought into the ready queue
B. It selects which process has to be executed next and allocates cpu
C. It selects which process to remove from memory by swapping
D. None of the mentioned
The primary distinction between the short term scheduler and the long term scheduler is __________
A. The length of their queues
B. The type of processes they schedule
C. The frequency of their execution
D. None of the mentioned
In a multiprogramming environment __________
A. The processor executes more than one process at a time
B. The programs are developed by more than one person
C. More than one process resides in the memory
D. A single user can execute many programs at the same time
The context of a process in the PCB of a process does not contain __________
A. The value of the cpu registers
B. The process state
C. Memory-management information
D. Context switch time
Which of the following need not necessarily be saved on a context switch between processes?
A. General purpose registers
B. Need not necessarily be saved on a context switch between processes. a special, small, fast-lookup hardware cache is called translation look-aside buffer. tlb used to reduce memory access time.
C. Program counter
D. All of the mentioned