operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 26

Fixed partitions

a) are very common in current operating systems

b) are very efficient in memory utilization

c) are very inefficient in memory utilization

d) are most used on large mainframe operating systems

Question : 27

A Semaphore is initialized to

a) Negative integer value

b) Positive integer value

c) Non-negative integer value

d) Non-positive integer value.

Question : 28

I/O modules in computer

a) Controls the operation of the computer.

b) Stores data and program.

c) Move data between the computer and external environment.

d) Provides communication among processors and main memory.

Question : 29

Round robin is a

a) kind of magnetic drum

b) process scheduling policy

c) process synchronization policy

d) memory allocation policy

Question : 30

In a fixed head disk, the number of read/write head per track are

a) One

b) Two

c) Three

d) Four.