operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

The cluster is a case of

a) Distributed memory

b) Shared memory

c) Master/slave architecture

d) Symmetric multi processor.

Question : 22

The wait operation

a) Decrements the semaphore value

b) Increments the semaphore value

c) Fixes the semaphore value

d) None of these.

Question : 23

Operating System is

a) Software

b) Hardware

c) Software and Hardware both

d) None of these.

Question : 24

The lowest level of I/O control consists of

a) device drivers

b) interrupt handlers

c) both A and B above

d) none of the above

Question : 25

In real time computing

a) The result of computation does not depend on the time at which computation is done.

b) The result of computation also depends on the time at which computation is done.

c) The results are independent of the time considered.

d) None of these.