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

Size of virtual memory depends on

Question # 2

Creating a job queue is a function of

Question # 3

A thread is.

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.

Question # 8

Seek analysis is for.

Question # 9

How applications communicates with kernel.

Question # 10

Which command is used to set terminal input output characteristics

Question # 11

Which command is used to know the LINUX version.

Question # 12

A series of statements explaining how the data is to be processed is called.

Question # 13

Which technique is used by operating systems to execute several program concurrently by switching back and forth.

Question # 14

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

Question # 15

A hardware device which is capable of executing a sequence of instructions, is known as.

Question # 16

Banker's algorithm deals with

Question # 17

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

Question # 18

Belady anomaly occurs in

Question # 19

Which command in LINUX is used for description any command.

Question # 20

File can have.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None
2 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
3 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
4 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
5 Daisy chain is a device for
A. Connecting a number of controllers to a device
B. Connecting a number of device to a controller
C. all of above
D. None of above
6 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
7 How applications communicates with kernel.
A. Not disclosed by linux team
B. SSL
C. System calls
D. Shell
8 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
9 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
10 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html

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