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

How applications communicates with kernel.

Question # 2

Which operating system use write through catches.

Question # 3

Which is the most important for Multi taskiing.

Question # 4

What is the command that can print lines of first file matching with second file.

Question # 5

Memory protection is normally done by

Question # 6

Tee command is used in LINUX for.

Question # 7

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

Question # 8

Distributed systems should.

Question # 9

File can have.

Question # 10

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

Question # 11

What is property of UNIX.

Question # 12

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

Question # 13

A series of statements explaining how the data is to be processed is called.

Question # 14

Which command is used to know the LINUX version.

Question # 15

Creating a job queue is a function of

Question # 16

Dirty bit is used ot show

Question # 17

Which command is used to set limits on file size.

Question # 18

Which command is used to copy files.

Question # 19

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

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
2 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
3 Which command is used to set limits on file size.
A. U limit
B. Alimit
C. dlimit
D. wilmit
4 Which of the following memory allocation scheme is subject to external fragmentation.
A. Segmentation
B. Swapping
C. Demand paging
D. Multiple contiguous fixed partitions
5 A publics key encryption system.
A. Allows only the correct sender to decode the data
B. Allows only the correct receiver to decode the data
C. Allows any one to decode the data
D. None of above
6 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
7 Which type of software can be used to merge data of two files in one files.
A. System software
B. Networking software
C. Documenting software
D. utility software
8 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
9 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
10 Tee command is used in LINUX for.
A.
Read from an input and write to a standard output and file.
B. Read from an input
C. Write to an output
D. None of above

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