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 of the following is always there in a computer.

Question # 2

Which of following is not an advantage of multiprogramming.

Question # 3

Poor response times are caused by

Question # 4

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

Question # 5

Distributed system should.

Question # 6

Distributed systems should.

Question # 7

Belady anomaly occurs in.

Question # 8

For multiprogramming operating system.

Question # 9

Belady anomaly occurs in

Question # 10

A thread is.

Question # 11

Scissoring enables

Question # 12

Dirty bit is used ot show

Question # 13

File record length

Question # 14

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 # 15

Which scheduling policy is best suited for time sharing operating system.

Question # 16

Which command is used to know the LINUX version.

Question # 17

Banker's algorithm deals with

Question # 18

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

Question # 19

Which of the following does not interrupt an running process.

Question # 20

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

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
2 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
3 Which of the following memory allocation scheme is subject to external fragmentation.
A. Segmentation
B. Swapping
C. Demand paging
D. Multiple contiguous fixed partitions
4 Spooling most beneficial where
A. Jobs are I/O bound
B. Jobs are CPU bound
C. Jobs are evenly divided as I/O bound are CPU bond
D. All of above
5 Which one shows the name of the operating system.
A. U name -n
B. Uname -I
C. U name - m
D. U name -o
6 Which LINUX command is used to update the modification time of a file.
A. UPDATE
B. MODIFY
C. TOUCH
D. UNTOCUH
7 Size of virtual memory depends on
A. Size of data bus
B. Size of address bus
C. Size of main memory
D. None of above
8 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
9 Which is the most important for Multi taskiing.
A. Modularity
B. Time sharing
C. Multi programming
D. Multi user
10 Which is signal user operating system.
A. MS-DOS
B. UNIX
C. XENIX
D. LINUX

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