Welcome to Operating System Quiz, Entry Level !!

Question 1. Virtual memory is

An extremely large main memory

An extremely large secondary memory

An illusion of extremely large main memory

A type of memory used in super computers

Question 2. PCB =

Program Control Block

Process Control Block

Process Communication Block

None of the above

Question 3. The problem of thrashing is effected scientifically by

Program structure

Program size

Primary storage size

None of the above

Question 4. The state of a process after it encounters an I/O instruction is

Ready

Blocked/Waiting

Idle

Running

Question 5. Which symbol will be used with grep command to match the pattern pat at the beginning of a line

^pat

$pat

pat$

pat^

Question 6. The number of processes completed per unit time is known as

Output

Throughput

Efficiency

Capacity

Question 7. What is a shell

It is a hardware component

It is a command interpreter

It is a part in compiler

It is a tool in CPU scheduling

Question 8. Which of the following file name extension suggests that the file is Backup copy of another file

TXT

COM

BAS

BAK

Question 9. The solution to Critical Section Problem is : Mutual Exclusion, Progress and Bounded Waiting

The statement is false

The statement is true

The statement is contradictory

None of the above

Question 10. If the Disk head is located initially at 32, find the number of disk moves required with FCFS if the disk queue of I/O blocks requests are 98,37,14,124,65,67.

310

324

315

321