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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  • Total Questions20

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PPSC Computer Science Topic 19 Operating System

00:00
Question # 1

Which of following need a device driever.

Question # 2

Which command is LINUX is concerned with backup.

Question # 3

By which command content of a file can be searched.

Question # 4

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

Question # 5

Main function of shared memory is.

Question # 6

Which operating system use write through catches.

Question # 7

Scissoring enables

Question # 8

Which is not a valid file type in LINUX.

Question # 9

What are the global locks.

Question # 10

Shortest job First executes first the job.

Question # 11

Which one shows the name of the operating system.

Question # 12

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

Question # 13

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 14

Which among the following is used to write small program to control Linux Functionalities.

Question # 15

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

Question # 16

Fragmentation of a file system.

Question # 17

All device files are stored in which directory.

Question # 18

What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.

Question # 19

Dirty bit is used ot show

Question # 20

Which scheduling policy is most suitable for time shared operating system.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 To display disk consumption of a specific directory which command is used.
A. dd
B. du
C. dt
D. di
2 What is property of UNIX.
A. Multi user
B. Multi processes
C. Multi tasking
D. All of above
3 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
4 What is the meaning of SVR 4
A. System five release 4
B. System version release 4
C. System five relocated 4
D. Storage files five release 4
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 By which of following the problem of thrashing is significantly affected.
A. Program size
B. Program structure
C. Primary storage
D. Secondary strorage
7 Which of the following memory allocation scheme is subject to external fragmentation.
A. Segmentation
B. Swapping
C. Demand paging
D. Multiple contiguous fixed partitions
8 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl
9 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
10 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session

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