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

Reference bit is used for

Question # 3

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

Question # 4

Which command reads the content of another file in vi editor .

Question # 5

Which command is used to copy files.

Question # 6

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

Question # 7

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

Question # 8

Super visor state is only allowed to.

Question # 9

Scissoring enables

Question # 10

A publics key encryption system.

Question # 11

Daisy chain is a device for

Question # 12

Shortest job First executes first the job.

Question # 13

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

Question # 14

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

Question # 15

Which of the following is always there in a computer.

Question # 16

To display disk consumption of a specific directory which command is used.

Question # 17

Distributed systems should.

Question # 18

Which type of software can be used to merge data of two files in one files.

Question # 19

Which command is used to set limits on file size.

Question # 20

A hardware device which is capable of executing a sequence of instructions, is known as.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 The part of machine level instruction which tells the central processor what has to be done is.
A. Operation code
B. Address
C. Locator
D. Flip flop
2 Seek analysis is for.
A. Paging issues
B. Device busy problems
C. Control unit busy problems
D. All of above
3 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
4 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive
5 Macintosh computer uses
A. System 7.0
B. AU/X
C. Xenix
D. None
6 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
7 To avoid the race condition the number of process that may be simultaneously inside the critical section is
A. 1
B. 3
C. 0
D. 12
8 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
9 Belady anomaly occurs in.
A. LIFO
B. FIFO
C. LRU
D. NRU
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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