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

Which command can be used to know the present working directory.

Question # 2

Memory protection is normally done by

Question # 3

Which of the following is always there in a computer.

Question # 4

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

Question # 5

For multiprogramming operating system.

Question # 6

Tee command is used in LINUX for.

Question # 7

What control character signals the end of the input file.

Question # 8

Daisy chain is a device for

Question # 9

Which command is LINUX is concerned with backup.

Question # 10

Distributed system should.

Question # 11

Seek analysis is for.

Question # 12

Disk scheduling includes decinding

Question # 13

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

Question # 14

Macintosh computer uses

Question # 15

Main function of shared memory is.

Question # 16

Which scheduling policy is best suited for time sharing operating system.

Question # 17

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

Question # 18

Fragmentation of a file system.

Question # 19

A high paging rate

Question # 20

Which operating system reacts in the acutal time.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 All the abbreviations is vi editor can be shown by
A. All
B. ab
C. atat
D. ashow
2 Kernel minimizes the frequency of disk access by keeping a pool of internal data buffer which helps to increase the response time this is known as.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory
3 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
4 Multiprogramming system
A. Are easier to develop than signal programming system.
B. Execute each job faster
C. Execute more jobs in the same time
D. Are used only on large main frame computers.
5 Which technique is used by operating systems to execute several program concurrently by switching back and forth.
A. Partitioning
B. Multitasking
C. Windowing
D. Paging
6 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
7 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
8 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
9 Dirty bit is used ot show
A. Page with corrupted data
B. Wrong page in memory
C. Page that a modified after being loaded in the cache memory
D. Page that is less frequently accessed
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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