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

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

Question # 2

Macintosh computer uses

Question # 3

Super visor state is only allowed to.

Question # 4

Solaris is product of.

Question # 5

All device files are stored in which directory.

Question # 6

Which of following need a device driever.

Question # 7

Seek analysis is for.

Question # 8

By which command content of a file can be searched.

Question # 9

Which is signal user operating system.

Question # 10

Which scheduling policy is most suitable for time shared operating system.

Question # 11

Tee command is used in LINUX for.

Question # 12

A series of statements explaining how the data is to be processed is called.

Question # 13

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

Question # 14

A hardware device which is capable of executing a sequence of instructions, is known as.

Question # 15

Daisy chain is a device for

Question # 16

Multiprogramming system

Question # 17

What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.

Question # 18

Which operating system use write through catches.

Question # 19

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 # 20

Size of virtual memory depends on

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 By which command content of a file can be searched.
A. grep
B. search
C. srh
D. show
2 Fragmentation of a file system.
A. Occurs only is file is not used properly
B. Can always the prevented
C. Happens in all file systems.
D. Can be removed by conmpaction
3 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.
4 Default permissions of file can be changed with.
A. Group
B. Chperm
C. chmod
D. Chall
5 What is property of UNIX.
A. Multi user
B. Multi processes
C. Multi tasking
D. All of above
6 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
7 Which command is used to know the LINUX version.
A. Uname
B. Vname
C. Iname
D. s name
8 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
9 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
10 Daisy chain is a device for
A. Connecting a number of controllers to a device
B. Connecting a number of device to a controller
C. all of above
D. None of above

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