operating system Practice Questions Answers Test with Solutions & More Shortcuts

Question : 21

In thread scheduling, load sharing is referred to

a) Simultaneous scheduling of threads that make up a single process.

b) Implicit scheduling defined by the assignment of threads to processors.

c) A global queue of ready thread is maintained and each processor, when idle, selects a thread from queue.

d) None of these.

Question : 22

Fragmentation of the file system

a) can always be prevented

b) occurs only if the file system is used improperly

c) can be temporarily removed by compaction

d) is a characteristic of all file systems

Question : 23

The mail box and ports are examples of

a) Indirect process communication

b) Direct process communication.

c) Both A and B true

d) None is true

Question : 24

In Dynamic partition of main memory in memory management, the sized of process and memory partition is

a) of exactly same size

b) of different size.

c) Both A and B true

d) None is true

Question : 25

Turnaround time is defined as

a) Delay between job submission and job completion

b) A waiting time

c) Both (A) and (B) above

d) None of these