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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  • Total Questions20

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PPSC Computer Science Topic 19 Operating System

00:00
Question # 1

A publics key encryption system.

Question # 2

Which among following is considered as super daemon.

Question # 3

In which of the following usually a front end processor is used.

Question # 4

Which command changes a files group owner

Question # 5

Which command is LINUX is concerned with backup.

Question # 6

When did IBM released the first version of its disk operating system DOS version 1.0

Question # 7

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 8

What control character signals the end of the input file.

Question # 9

Which process is known for initializing a microcomputer with its OS.

Question # 10

Which command reads the content of another file in vi editor .

Question # 11

Which command in LINUX is used for description any command.

Question # 12

Which command gives the first byte where the difference is in the file 1 & file2

Question # 13

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

Question # 14

Daisy chain is a device for

Question # 15

Remote computing services involves the use of time sharing and

Question # 16

Which operating system use write through catches.

Question # 17

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

Question # 18

Which command is used to record a user login session in a file.

Question # 19

By which of following the problem of thrashing is significantly affected.

Question # 20

Semaphores are used to solve the problem of.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
2 Remote computing services involves the use of time sharing and
A. Multiprocessing
B. Interactive processing
C. Batch processing
D. Real time processing
3 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
4 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
5 Spooling most beneficial where
A. Jobs are I/O bound
B. Jobs are CPU bound
C. Jobs are evenly divided as I/O bound are CPU bond
D. All of above
6 What is meaning of ILP32
A. 32 bit integrated Long & Pointer
B. 32 bit integer long & pointer
C. 32 bit integer Long & Point
D. 32 bit integer , Lost & pointer
7 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session
8 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
9 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
10 Which is the most important for Multi taskiing.
A. Modularity
B. Time sharing
C. Multi programming
D. Multi user

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