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

File can have.

Question # 2

Remote computing services involves the use of time sharing and

Question # 3

Spooling most beneficial where

Question # 4

Macintosh computer uses

Question # 5

Which command is LINUX is concerned with backup.

Question # 6

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

Question # 7

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

Question # 8

Scissoring enables

Question # 9

Daisy chain is a device for

Question # 10

Super visor state is only allowed to.

Question # 11

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

Question # 12

In real time OS, which is most suitable scheduling scheme.

Question # 13

What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.

Question # 14

Creating a job queue is a function of

Question # 15

All device files are stored in which directory.

Question # 16

Which command in LINUX is used for description any command.

Question # 17

A publics key encryption system.

Question # 18

Which command is used to copy files.

Question # 19

What is meaning of ILP32

Question # 20

Which command is concerned with LINUX kernel log messages.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 How applications communicates with kernel.
A. Not disclosed by linux team
B. SSL
C. System calls
D. Shell
2 Which command is used to set terminal input output characteristics
A. Atty
B. stty
C. dtty
D. itty
3 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
4 Fragmentation of a file system.
A. Occurs only is file is not used properly
B. Can always the prevented
C. Happens in all file systems.
D. Can be removed by conmpaction
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 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session
7 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
8 Seek analysis is for.
A. Paging issues
B. Device busy problems
C. Control unit busy problems
D. All of above
9 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues
10 Which command reads the content of another file in vi editor .
A. erd
B. ex
C. r
D. read

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