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 need a device driever.

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

Which of following is not an advantage of multiprogramming.

Question # 4

Scissoring enables

Question # 5

The system calls in UNIX is written using which language.

Question # 6

A publics key encryption system.

Question # 7

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

Question # 8

Which is non pre emptive

Question # 9

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

Question # 10

In vi editor which command sets the number for all lines.

Question # 11

Which command is used to know the LINUX version.

Question # 12

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

Question # 13

Which command can be used to know the present working directory.

Question # 14

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

Question # 15

In which scheduling policies context switching never takes place

Question # 16

Creating a job queue is a function of

Question # 17

Tee command is used in LINUX for.

Question # 18

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

Question # 19

Which of the following does not interrupt an running process.

Question # 20

Dirty bit is used ot show

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
2 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
3 Disk scheduling includes decinding
A. Which should be accessed next
B. Order in which disk access requests must be serviced
C. The physical location of the file
D. the logical location of the file
4 In which of the following usually a front end processor is used.
A. Virtual storage
B. Time sharing
C. Multi programming
D. Multi heading
5 In which scheduling policies context switching never takes place
A. FCFS
B. Round robin
C. Shortest job first
D. Pre empitive
6 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
7 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn
8 Main function of shared memory is.
A. To use primary memory efficiently
B. To do intra process communication
C. All of above
D. None
9 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4
10 Which is not a valid file type in LINUX.
A. Socket
B. FIFO
C. Soft link
D. Inode

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