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

Semaphores are used to solve the problem of.

Question # 2

Dijkstra's algorithm deals with

Question # 3

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

Question # 4

All the abbreviations is vi editor can be shown by

Question # 5

Which scheduling policy is most suitable for time shared operating system.

Question # 6

Banker's algorithm deals with

Question # 7

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

Question # 8

Spooling most beneficial where

Question # 9

What control character signals the end of the input file.

Question # 10

Solaris is product of.

Question # 11

A thread is.

Question # 12

Memory protection is normally done by

Question # 13

Which command is used to set limits on file size.

Question # 14

Which command is used to determine the path of an executable file.

Question # 15

Which operating system use write through catches.

Question # 16

Which scheduling policy is best suited for time sharing operating system.

Question # 17

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

Question # 18

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

Question # 19

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

Question # 20

File can have.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
2 Memory protection is normally done by
A. The processor and the associated hardware
B. The operating system
C. The compiler
D. The user program
3 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
4 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
5 What communication command provides communication to another user logged on by writing to the bottom of their terminal
A. Chat
B. Talk
C. Write
D. Sending
6 Which command is used to extract a column from a text file.
A. get
B. tar
C. untar
D. cut
7 A high paging rate
A. May cause a high I/O rate
B. Keeps the system running well
C. Is a symptom of too much processor activity
D. Always creates a slow system.
8 Which is the most important for Multi taskiing.
A. Modularity
B. Time sharing
C. Multi programming
D. Multi user
9 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
10 Which command gives the first byte where the difference is in the file 1 & file2
A. Diff
B. differ
C. Cmp
D. Compare

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