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

Question # 2

Which command is LINUX is concerned with backup.

Question # 3

Which of following need a device driever.

Question # 4

Which command is concerned with LINUX kernel log messages.

Question # 5

For multiprogramming operating system.

Question # 6

Solaris is product of.

Question # 7

Scissoring enables

Question # 8

Super visor state is only allowed to.

Question # 9

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

Question # 10

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

Question # 11

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

Question # 12

Which command is used to set terminal input output characteristics

Question # 13

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

Question # 14

Which among following scheduling algorithms give minimum average waiting time.

Question # 15

In which scheduling policies context switching never takes place

Question # 16

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

Question # 17

Poor response times are caused by

Question # 18

Distributed system should.

Question # 19

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

Question # 20

Which of following is not an advantage of multiprogramming.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
2 Which command is used to set terminal input output characteristics
A. Atty
B. stty
C. dtty
D. itty
3 Which of the following memory allocation scheme is subject to external fragmentation.
A. Segmentation
B. Swapping
C. Demand paging
D. Multiple contiguous fixed partitions
4 Which operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
5 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
6 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
7 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None
8 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
9 Disk scheduling includes decinding
A. Which should be accessed next
B. Order in which disk access requests must be serviced
C. The physical location of the file
D. the logical location of the file
10 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di

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