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

00:00
Question # 1

Spooling most beneficial where

Question # 2

Problem of thrashing is affected significantly by

Question # 3

What are the global locks.

Question # 4

Which is the most important for Multi taskiing.

Question # 5

What is the command that can print lines of first file matching with second file.

Question # 6

Which of following need a device driever.

Question # 7

Belady anomaly occurs in.

Question # 8

Which of the following is always there in a computer.

Question # 9

Which command is used to copy files.

Question # 10

Scissoring enables

Question # 11

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

Question # 12

For multiprogramming operating system.

Question # 13

Which command is concerned with LINUX kernel log messages.

Question # 14

What is meaning of ILP32

Question # 15

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

Question # 16

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

Question # 17

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

Question # 18

Which of following is not an advantage of multiprogramming.

Question # 19

A publics key encryption system.

Question # 20

In which scheduling policies context switching never takes place

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
2 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
3 Which operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
4 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
5 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
6 Which is signal user operating system.
A. MS-DOS
B. UNIX
C. XENIX
D. LINUX
7 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
8 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
9 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
10 All the abbreviations is vi editor can be shown by
A. All
B. ab
C. atat
D. ashow

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