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 command reads the content of another file in vi editor .

Question # 2

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

Question # 3

A thread is.

Question # 4

if the CPU scheduling policy is FCFS then what would be average waiting time.

Question # 5

Which one is true.

Question # 6

Which command is used to copy files.

Question # 7

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

Question # 8

Remote computing services involves the use of.

Question # 9

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

Question # 10

Which is the most important for Multi taskiing.

Question # 11

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

Question # 12

Distributed system should.

Question # 13

Which is non pre emptive

Question # 14

To display disk consumption of a specific directory which command is used.

Question # 15

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

Question # 16

What is meaning of ILP32

Question # 17

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

Question # 18

Which operating system reacts in the acutal time.

Question # 19

Remote computing services involves the use of time sharing and

Question # 20

Daisy chain is a device for

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 In which of the following usually a front end processor is used.
A. Virtual storage
B. Time sharing
C. Multi programming
D. Multi heading
2 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
3 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
4 File can have.
A. Read access
B. Write access
C. Copy access
D. All of above
5 By which command content of a file can be searched.
A. grep
B. search
C. srh
D. show
6 What is property of UNIX.
A. Multi user
B. Multi processes
C. Multi tasking
D. All of above
7 How many links are created when we create a directory file.
A. 1
B. 2
C. 3
D. 4
8 Memory protection is normally done by
A. The processor and the associated hardware
B. The operating system
C. The compiler
D. The user program
9 A publics key encryption system.
A. Allows only the correct sender to decode the data
B. Allows only the correct receiver to decode the data
C. Allows any one to decode the data
D. None of above
10 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di

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