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 type of software can be used to merge data of two files in one files.

Question # 2

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

Question # 3

Which among following is considered as super daemon.

Question # 4

Dijkstra's algorithm deals with

Question # 5

Shortest job First executes first the job.

Question # 6

What is the meaning of SVR 4

Question # 7

Which of the following is always there in a computer.

Question # 8

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 9

Which command is used to extract a column from a text file.

Question # 10

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

Question # 11

In which of the following usually a front end processor is used.

Question # 12

All device files are stored in which directory.

Question # 13

Which command is used to determine the path of an executable file.

Question # 14

Which one shows the name of the operating system.

Question # 15

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

Question # 16

A high paging rate

Question # 17

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

Question # 18

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

Question # 19

Which of following is not an advantage of multiprogramming.

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 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
2 Memory protection is normally done by
A. The processor and the associated hardware
B. The operating system
C. The compiler
D. The user program
3 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
4 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
5 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
6 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
7 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
8 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
9 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None
10 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg

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