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

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

Question # 2

File can have.

Question # 3

Which operating system reacts in the acutal time.

Question # 4

All the abbreviations is vi editor can be shown by

Question # 5

Which among following is considered as super daemon.

Question # 6

Which of the following is always there in a computer.

Question # 7

Which is the most important for Multi taskiing.

Question # 8

What control character signals the end of the input file.

Question # 9

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

Question # 10

Fragmentation of a file system.

Question # 11

Which process is known for initializing a microcomputer with its OS.

Question # 12

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

Question # 13

Which command is used to copy files.

Question # 14

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

Question # 15

Which is non pre emptive

Question # 16

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 # 17

Disk scheduling includes decinding

Question # 18

Size of virtual memory depends on

Question # 19

Which is not a valid file type in LINUX.

Question # 20

Remote computing services involves the use of.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 All the abbreviations is vi editor can be shown by
A. All
B. ab
C. atat
D. ashow
3 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.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory
4 What control character signals the end of the input file.
A. Ctrl + s
B. Ctrl + z
C. Ctrl + w
D. Ctrl + d
5 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
6 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
7 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
8 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
9 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
10 Which command is used to extract a column from a text file.
A. get
B. tar
C. untar
D. cut

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