PPSC Computer Science Topic 19 MCQ's Test Preparation

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MCQ's Test For PPSC Computer Science Topic 19 Operating System

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PPSC Computer Science Topic 19 Operating System

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Question # 1

Creating a job queue is a function of

Question # 2

What is meaning of ILP32

Question # 3

In which scheduling policies context switching never takes place

Question # 4

Which command in vi editor command is used to copy the current line of the file.

Question # 5

File record length

Question # 6

For multiprogramming operating system.

Question # 7

Main function of shared memory is.

Question # 8

What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.

Question # 9

What communication command provides communication to another user logged on by writing to the bottom of their terminal

Question # 10

Which one shows the name of the operating system.

Question # 11

Seek analysis is for.

Question # 12

How many links are created when we create a directory file.

Question # 13

Which operating system reacts in the acutal time.

Question # 14

Re location bits used by relocating loader are a pacified by

Question # 15

Disk scheduling includes decinding

Question # 16

Dijkstra's algorithm deals with

Question # 17

Which is non pre emptive

Question # 18

Fragmentation of a file system.

Question # 19

In vi editor which command sets the number for all lines.

Question # 20

Which among the following is used to write small program to control Linux Functionalities.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
2 Size of virtual memory depends on
A. Size of data bus
B. Size of address bus
C. Size of main memory
D. None of above
3 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
4 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
5 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4
6 Semaphores are used to solve the problem of.
A. Race condition
B. Process synchronization
C. Mutual exclusion
D. Belady problem
7 Which scheduling policy is most suitable for time shared operating system.
A. Shortest job first
B. FCFS
C. LCFS
D. Round robin
8 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
9 Which command is used to extract a column from a text file.
A. get
B. tar
C. untar
D. cut
10 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None

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