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

Question # 2

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

Question # 3

In which of the following usually a front end processor is used.

Question # 4

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

Question # 5

The part of machine level instruction which tells the central processor what has to be done is.

Question # 6

Which command is concerned with LINUX kernel log messages.

Question # 7

Which operating system reacts in the acutal time.

Question # 8

Dijkstra's algorithm deals with

Question # 9

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

Question # 10

By which command content of a file can be searched.

Question # 11

Banker's algorithm deals with

Question # 12

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

Question # 13

Shortest job First executes first the job.

Question # 14

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

Question # 15

Which of following is not an advantage of multiprogramming.

Question # 16

Distributed systems should.

Question # 17

Distributed system should.

Question # 18

In which scheduling policies context switching never takes place

Question # 19

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

Question # 20

How applications communicates with kernel.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 File record length
A. Should be chosen to match the data characteristics
B. Should be fixed
C. Should be variable
D. Vary system to system
2 Remote computing services involves the use of.
A. Multi processing
B. Multi programming
C. Batch processing
D. Real time processing
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 used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
5 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
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 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 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 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
10 Which of the following does not interrupt an running process.
A. A device
B. Timer
C. Scheduler process
D. Power failure

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