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

A high paging rate

Question # 2

Which among following is considered as super daemon.

Question # 3

In real time OS, which is most suitable scheduling scheme.

Question # 4

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

Question # 5

Seek analysis is for.

Question # 6

Which command changes a files group owner

Question # 7

Which one shows the name of the operating system.

Question # 8

How applications communicates with kernel.

Question # 9

Super visor state is only allowed to.

Question # 10

Solaris is product of.

Question # 11

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

Question # 12

Problem of thrashing is affected significantly by

Question # 13

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

Question # 14

What is the meaning of SVR 4

Question # 15

Which one is true.

Question # 16

What is the name of values that are automatically provided by software to reduce keystrokes.

Question # 17

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

Question # 18

Which of the following memory allocation scheme is subject to external fragmentation.

Question # 19

File inode number can be viewed by.

Question # 20

Scissoring enables

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which technique is used by operating systems to execute several program concurrently by switching back and forth.
A. Partitioning
B. Multitasking
C. Windowing
D. Paging
2 Which among the following is used to write small program to control Linux Functionalities.
A. Shell commands
B. Shell script
C. C
D. Java
3 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
4 Which command is concerned with LINUX kernel log messages.
A. dmsg
B. dmesg
C. cmsg
D. cmesg
5 Problem of thrashing is affected significantly by
A. Program structure
B. Program size
C. Primary storage size
D. All of above
6 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
7 Shortest job First executes first the job.
A. With the least processor needs
B. That first entered the queue
C. That has been in the queue for the longest
D. That last entered the queue
8 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
9 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
10 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail

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