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

00:00
Question # 1

Problem of thrashing is affected significantly by

Question # 2

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 3

Multiprogramming system

Question # 4

Macintosh computer uses

Question # 5

What is the name of values that are automatically provided by software to reduce keystrokes.

Question # 6

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

Question # 7

For multiprogramming operating system.

Question # 8

Which command is used to determine the path of an executable file.

Question # 9

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

Question # 10

Distributed system should.

Question # 11

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 # 12

Four necessary conditions for dead lock are none pre emption circular wait and

Question # 13

What control character signals the end of the input file.

Question # 14

Which is signal user operating system.

Question # 15

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

Question # 16

Fragmentation of a file system.

Question # 17

Which command can be used to know the present working directory.

Question # 18

All device files are stored in which directory.

Question # 19

Which of the following is always there in a computer.

Question # 20

All the abbreviations is vi editor can be shown by

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Super visor state is only allowed to.
A. Utility softwares
B. Application sotware
C. Operating system
D. Guest user
2 Four necessary conditions for dead lock are none pre emption circular wait and
A. Mutual exclusion
B. Race condition
C. Buffer overflow
D. None of above
3 Which is not a valid file type in LINUX.
A. Socket
B. FIFO
C. Soft link
D. Inode
4 In real time OS, which is most suitable scheduling scheme.
A. Round robin
B. FCFS
C. Pre-emptive scheduling
D. Random scheduling
5 Which operating system reacts in the acutal time.
A. Batch system
B. Quick response system
C. Real time system
D. Time sharing system
6 Which command is used to determine the path of an executable file.
A. which
B. whom
C. locate
D. wex
7 Which LINUX command is used to update the modification time of a file.
A. UPDATE
B. MODIFY
C. TOUCH
D. UNTOCUH
8 A hardware device which is capable of executing a sequence of instructions, is known as.
A. CPU
B. ALU
C. CU
D. Processor
9 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
10 What is the command that can print lines of first file matching with second file.
A. Printline
B. cmp
C. com
D. comn

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