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 is signal user operating system.

Question # 2

Shortest job First executes first the job.

Question # 3

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

Question # 4

Creating a job queue is a function of

Question # 5

Macintosh computer uses

Question # 6

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

Question # 7

Which command is LINUX is concerned with backup.

Question # 8

Which one is true.

Question # 9

What communication command provides communication to another user logged on by writing to the bottom of their terminal

Question # 10

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

Question # 11

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

Question # 12

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

Question # 13

Seek analysis is for.

Question # 14

All device files are stored in which directory.

Question # 15

By which command content of a file can be searched.

Question # 16

In which scheduling policies context switching never takes place

Question # 17

For multiprogramming operating system.

Question # 18

Re location bits used by relocating loader are a pacified by

Question # 19

What control character signals the end of the input file.

Question # 20

Semaphores are used to solve the problem of.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which technique is used by operating systems to execute several program concurrently by switching back and forth.
A. Partitioning
B. Multitasking
C. Windowing
D. Paging
2 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
3 Which command is used to know the LINUX version.
A. Uname
B. Vname
C. Iname
D. s name
4 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
5 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
6 Distributed systems should.
A. Meet time constraints
B. Aim better resource sharing
C. Aim better system utilization
D. Aim low system overhead
7 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
8 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
9 Which among following scheduling algorithms give minimum average waiting time.
A. FCFS
B. SJF
C. Round rabin
D. On priority
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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