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

For multiprogramming operating system.

Question # 2

Which command is used to set terminal input output characteristics

Question # 3

Which command is used to set limits on file size.

Question # 4

Which LINUX command is used to update the modification time of a file.

Question # 5

Which command reads the content of another file in vi editor .

Question # 6

A thread is.

Question # 7

Which of following need a device driever.

Question # 8

Which operating system use write through catches.

Question # 9

Reference bit is used for

Question # 10

Printer in the file structure can be found in.

Question # 11

By which of following the problem of thrashing is significantly affected.

Question # 12

How applications communicates with kernel.

Question # 13

Macintosh computer uses

Question # 14

Main function of shared memory is.

Question # 15

By which command content of a file can be searched.

Question # 16

Remote computing services involves the use of time sharing and

Question # 17

Which command in LINUX is used for description any command.

Question # 18

if the CPU scheduling policy is FCFS then what would be average waiting time.

Question # 19

Shortest job First executes first the job.

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
2 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
3 Which is non pre emptive
A. Round robin
B. FIFO
C. MS
D. MSF
4 Seek analysis is for.
A. Paging issues
B. Device busy problems
C. Control unit busy problems
D. All of above
5 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
6 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
7 Which is signal user operating system.
A. MS-DOS
B. UNIX
C. XENIX
D. LINUX
8 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
9 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
10 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive

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