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

Disk scheduling includes decinding

Question # 2

Which command in vi editor command is used to copy the current line of the file.

Question # 3

Which command is used to set limits on file size.

Question # 4

Which command in LINUX is used for description any command.

Question # 5

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

Question # 6

For multiprogramming operating system.

Question # 7

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

Question # 8

Which command gives the first byte where the difference is in the file 1 & file2

Question # 9

To avoid the race condition the number of process that may be simultaneously inside the critical section is

Question # 10

Re location bits used by relocating loader are a pacified by

Question # 11

Distributed system should.

Question # 12

By which command content of a file can be searched.

Question # 13

All the abbreviations is vi editor can be shown by

Question # 14

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

Question # 15

What control character signals the end of the input file.

Question # 16

Semaphores are used to solve the problem of.

Question # 17

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

Question # 18

Daisy chain is a device for

Question # 19

Which is non pre emptive

Question # 20

File record length

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Problem of thrashing is affected significantly by
A. Program structure
B. Program size
C. Primary storage size
D. All of above
2 Semaphores are used to solve the problem of.
A. Race condition
B. Process synchronization
C. Mutual exclusion
D. Belady problem
3 The system calls in UNIX is written using which language.
A. Java
B. C
C. C++
D. Assembly
4 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
5 What communication command provides communication to another user logged on by writing to the bottom of their terminal
A. Chat
B. Talk
C. Write
D. Sending
6 Which scheduling policy is most suitable for time shared operating system.
A. Shortest job first
B. FCFS
C. LCFS
D. Round robin
7 A thread is.
A. Lightweight process where the context switching is low
B. Lightweight process where the context switching is high
C. Used to speed up paging
D. Used in dead locks
8 Banker's algorithm deals with
A. Dead lock prevention
B. Dead lock avoidance
C. Dead look recovery
D. Mutual exclusion
9 A hardware device which is capable of executing a sequence of instructions, is known as.
A. CPU
B. ALU
C. CU
D. Processor
10 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting

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