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

Reference bit is used for

Question # 2

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

Question # 3

How applications communicates with kernel.

Question # 4

What is the meaning of SVR 4

Question # 5

Which command in LINUX is used for description any command.

Question # 6

Remote computing services involves the use of.

Question # 7

Which one shows the name of the operating system.

Question # 8

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

Question # 9

Which among the following is used to write small program to control Linux Functionalities.

Question # 10

Spooling most beneficial where

Question # 11

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

Question # 12

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

Question # 13

Which command is LINUX is concerned with backup.

Question # 14

Dirty bit is used ot show

Question # 15

Which of the following memory allocation scheme is subject to external fragmentation.

Question # 16

Super visor state is only allowed to.

Question # 17

Which operating system use write through catches.

Question # 18

Which command is used to copy files.

Question # 19

Belady anomaly occurs in

Question # 20

Which is signal user operating system.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which of the following does not interrupt an running process.
A. A device
B. Timer
C. Scheduler process
D. Power failure
2 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
3 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
4 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
5 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
6 A high paging rate
A. May cause a high I/O rate
B. Keeps the system running well
C. Is a symptom of too much processor activity
D. Always creates a slow system.
7 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
8 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
9 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
10 Default permissions of file can be changed with.
A. Group
B. Chperm
C. chmod
D. Chall

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