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

Size of virtual memory depends on

Question # 2

By which command content of a file can be searched.

Question # 3

Distributed system should.

Question # 4

Which is not a valid file type in LINUX.

Question # 5

Daisy chain is a device for

Question # 6

Re location bits used by relocating loader are a pacified by

Question # 7

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 # 8

Which command is used to know the LINUX version.

Question # 9

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

Question # 10

Banker's algorithm deals with

Question # 11

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

Question # 12

A thread is.

Question # 13

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

Question # 14

For multiprogramming operating system.

Question # 15

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

Question # 16

In real time OS, which is most suitable scheduling scheme.

Question # 17

Which command is used to set limits on file size.

Question # 18

Which command is used to record a user login session in a file.

Question # 19

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

Question # 20

How many links are created when we create a directory file.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 File inode number can be viewed by.
A. -8
B. -1
C. -a
D. -t
2 Which is non pre emptive
A. Round robin
B. FIFO
C. MS
D. MSF
3 File can have.
A. Read access
B. Write access
C. Copy access
D. All of above
4 Disk scheduling includes decinding
A. Which should be accessed next
B. Order in which disk access requests must be serviced
C. The physical location of the file
D. the logical location of the file
5 Which among following is considered as super daemon.
A. Sysinit
B. Grep
C. Init
D. Locate
6 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
7 Which command in vi editor command is used to copy the current line of the file.
A. ys
B. yy
C. yc
D. yw
8 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
9 Which operating system use write through catches.
A. UNIX
B. XENIX
C. ULTRIX
D. DOS
10 In which scheduling policies context switching never takes place
A. FCFS
B. Round robin
C. Shortest job first
D. Pre empitive

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