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

Printer in the file structure can be found in.

Question # 2

Main function of shared memory is.

Question # 3

File record length

Question # 4

A publics key encryption system.

Question # 5

By which command content of a file can be searched.

Question # 6

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

Question # 7

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

Question # 8

All the abbreviations is vi editor can be shown by

Question # 9

Distributed systems should.

Question # 10

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

Question # 11

Semaphores are used to solve the problem of.

Question # 12

Which command is used to set limits on file size.

Question # 13

Fragmentation of a file system.

Question # 14

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

Question # 15

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.

Question # 16

Spooling most beneficial where

Question # 17

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

Question # 18

Dirty bit is used ot show

Question # 19

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

Question # 20

Which among following is considered as super daemon.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
2 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
3 A hardware device which is capable of executing a sequence of instructions, is known as.
A. CPU
B. ALU
C. CU
D. Processor
4 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
5 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.
6 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
7 Default permissions of file can be changed with.
A. Group
B. Chperm
C. chmod
D. Chall
8 Which of the following does not interrupt an running process.
A. A device
B. Timer
C. Scheduler process
D. Power failure
9 Memory protection is normally done by
A. The processor and the associated hardware
B. The operating system
C. The compiler
D. The user program
10 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.

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