Welcome to Operating System Quiz, Entry Level !!

Question 1. In the blocked state

the processes waiting for I/O are found

the process which is running is found

the processes waiting for the processor are found

none of the above

Question 2. Which directory implementation is used in most Operating System

Single level directory structure

Two level directory structure

Tree directory structure

Acyclic directory structure

Question 3. A page fault occurs

when the page is not in the memory

when the page is in the memory

when the process enters the blocked state

when the process is in the ready state

Question 4. Which of the following will determine your choice of systems software for your computer

Is the applications software you want to use compatible with it

Is it expensive

Is it compatible with your hardware

Both 1 and 3

Question 5. The number of processes completed per unit time is known as





Question 6. Multiprogramming systems

Are easier to develop than single programming systems

Execute each job faster

Execute more jobs in the same time

Are used only on large main frame computers

Question 7. The Banker's algorithm is used

to prevent deadlock in operating systems

to detect deadlock in operating systems

to rectify a deadlocked state

none of the above

Question 8. A tree structured file directory system

allows easy storage and retrieval of file names

is a much debated unecessary feature

is not essential when we have millions of files

none of the above

Question 9. Round robin scheduling is essentially the preemptive version of


Shortest job first

Shortest remaining

Longest time first

Question 10. In UNIX, Which command is used to display the top of the file