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

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

Question # 2

Disk scheduling includes decinding

Question # 3

Distributed systems should.

Question # 4

Shortest job First executes first the job.

Question # 5

All the abbreviations is vi editor can be shown by

Question # 6

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

Question # 7

All device files are stored in which directory.

Question # 8

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

Question # 9

Which of following is not an advantage of multiprogramming.

Question # 10

Which of the following is always there in a computer.

Question # 11

Daisy chain is a device for

Question # 12

Which is not a valid file type in LINUX.

Question # 13

Re location bits used by relocating loader are a pacified by

Question # 14

When did IBM released the first version of its disk operating system DOS version 1.0

Question # 15

Spooling most beneficial where

Question # 16

Which command is LINUX is concerned with backup.

Question # 17

Belady anomaly occurs in.

Question # 18

Dirty bit is used ot show

Question # 19

Size of virtual memory depends on

Question # 20

Which technique is used by operating systems to execute several program concurrently by switching back and forth.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 Shortest job First executes first the job.
A. With the least processor needs
B. That first entered the queue
C. That has been in the queue for the longest
D. That last entered the queue
3 File can have.
A. Read access
B. Write access
C. Copy access
D. All of above
4 Which command is used to extract a column from a text file.
A. get
B. tar
C. untar
D. cut
5 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
6 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
7 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
8 How many links are created when we create a directory file.
A. 1
B. 2
C. 3
D. 4
9 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
10 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4

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