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

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

Question # 2

What is the name of values that are automatically provided by software to reduce keystrokes.

Question # 3

Which command in LINUX is used for description any command.

Question # 4

Default permissions of file can be changed with.

Question # 5

A high paging rate

Question # 6

Which operating system reacts in the acutal time.

Question # 7

Spooling most beneficial where

Question # 8

Fragmentation of a file system.

Question # 9

Remote computing services involves the use of time sharing and

Question # 10

Main function of shared memory is.

Question # 11

Daisy chain is a device for

Question # 12

which option of 'grep' displays the line number as well.

Question # 13

Distributed system should.

Question # 14

Which among following is considered as super daemon.

Question # 15

In which scheduling policies context switching never takes place

Question # 16

Which among following scheduling algorithms give minimum average waiting time.

Question # 17

Distributed systems should.

Question # 18

Dijkstra's algorithm deals with

Question # 19

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

Question # 20

Which operating system use write through catches.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Shortest job First executes first the job.
A. With the least processor needs
B. That first entered the queue
C. That has been in the queue for the longest
D. That last entered the queue
2 Which scheduling policy is best suited for time sharing operating system.
A. Shortest job first
B. Round robin
C. First come first serve
D. Elevator
3 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
4 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
5 Remote computing services involves the use of time sharing and
A. Multiprocessing
B. Interactive processing
C. Batch processing
D. Real time processing
6 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
7 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
8 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
9 To avoid the race condition the number of process that may be simultaneously inside the critical section is
A. 1
B. 3
C. 0
D. 12
10 Which one is true.
A. The linkage editor is used to edit program which have to later link together.
B. The linkage editor links object module during compling
C. The linkage editor links objects modules and resolves external reference between them before loading.
D. None of above

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