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 of following is not an advantage of multiprogramming.

Question # 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.

Question # 3

Reference bit is used for

Question # 4

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

Question # 5

Which is non pre emptive

Question # 6

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

Question # 7

If two files on same partition point to the same inode structure they are called.

Question # 8

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

Question # 9

Which command changes a files group owner

Question # 10

Macintosh computer uses

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

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

Question # 16

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

Question # 17

Semaphores are used to solve the problem of.

Question # 18

By which command content of a file can be searched.

Question # 19

Which command is used to know the LINUX version.

Question # 20

All device files are stored in which directory.

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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 Which is not a valid file type in LINUX.
A. Socket
B. FIFO
C. Soft link
D. Inode
3 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
4 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
5 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
6 Which command changes a files group owner
A. chmod
B. chgrp
C. chown
D. chgrep
7 If two files on same partition point to the same inode structure they are called.
A. Soft links
B. Hard links
C. Copy links
D. similar links
8 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
9 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
10 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead

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