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 following is considered as super daemon.

Question # 2

Shortest job First executes first the job.

Question # 3

In the shell , by default all variables are considered and stored as.

Question # 4

Which of following need a device driever.

Question # 5

Re location bits used by relocating loader are a pacified by

Question # 6

Seek analysis is for.

Question # 7

To avoid the race condition the number of process that may be simultaneously inside the critical section is

Question # 8

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

Question # 9

Disk scheduling includes decinding

Question # 10

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

Question # 11

Which command is used to determine the path of an executable file.

Question # 12

What is property of UNIX.

Question # 13

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

Question # 14

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

Question # 15

Banker's algorithm deals with

Question # 16

What control character signals the end of the input file.

Question # 17

Main function of shared memory is.

Question # 18

Which command gives the first byte where the difference is in the file 1 & file2

Question # 19

Dijkstra's algorithm deals with

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues
2 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
3 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
4 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
5 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
6 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
7 Four necessary conditions for dead lock are none pre emption circular wait and
A. Mutual exclusion
B. Race condition
C. Buffer overflow
D. None of above
8 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
9 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
10 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording

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