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

Which command is used to know the LINUX version.

Question # 2

Which command is used to extract a column from a text file.

Question # 3

If two files on same partition point to the same inode structure they are called.

Question # 4

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

Question # 5

Reference bit is used for

Question # 6

Which is non pre emptive

Question # 7

Problem of thrashing is affected significantly by

Question # 8

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

Question # 9

The part of machine level instruction which tells the central processor what has to be done is.

Question # 10

A publics key encryption system.

Question # 11

Macintosh computer uses

Question # 12

Which is signal user operating system.

Question # 13

Which of following need a device driever.

Question # 14

Main function of shared memory is.

Question # 15

Which of following is not an advantage of multiprogramming.

Question # 16

Which command is used to set limits on file size.

Question # 17

Which command is used to copy files.

Question # 18

Distributed system should.

Question # 19

Dirty bit is used ot show

Question # 20

By which command content of a file can be searched.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 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
3 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
4 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
5 Which LINUX command is used to update the modification time of a file.
A. UPDATE
B. MODIFY
C. TOUCH
D. UNTOCUH
6 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
7 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
8 Four necessary conditions for dead lock are none pre emption circular wait and
A. Mutual exclusion
B. Race condition
C. Buffer overflow
D. None of above
9 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
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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