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

Printer in the file structure can be found in.

Question # 2

Remote computing services involves the use of time sharing and

Question # 3

Which of following is not an advantage of multiprogramming.

Question # 4

Which command is used to set terminal input output characteristics

Question # 5

The part of machine level instruction which tells the central processor what has to be done is.

Question # 6

Multiprogramming system

Question # 7

Which among following is considered as super daemon.

Question # 8

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

Question # 9

Which is the most important for Multi taskiing.

Question # 10

Which command in LINUX is used for description any command.

Question # 11

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

Question # 12

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 13

File inode number can be viewed by.

Question # 14

Which command is used to copy files.

Question # 15

A hardware device which is capable of executing a sequence of instructions, is known as.

Question # 16

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

Question # 17

Remote computing services involves the use of.

Question # 18

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

Question # 19

Which command is used to know the LINUX version.

Question # 20

A publics key encryption system.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 How many links are created when we create a directory file.
A. 1
B. 2
C. 3
D. 4
2 A series of statements explaining how the data is to be processed is called.
A. Instruction
B. Compiler
C. Program
D. Interpretor
3 Which command can be used to know the present working directory.
A. pad
B. pww
C. pwd
D. pdd
4 Reference bit is used for
A. Implementing LRU page replacement algorithm
B. Implementing NRU algorithm
C. To check the page table entry in the cache memory
D. None of above
5 A high paging rate
A. May cause a high I/O rate
B. Keeps the system running well
C. Is a symptom of too much processor activity
D. Always creates a slow system.
6 Dijkstra's algorithm deals with
A. Mutual exclusion
B. Dead lock avoidance
C. Dead lock recovery
D. Real time processing
7 All device files are stored in which directory.
A. /etc
B. /dev
C. /www
D. /html
8 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive
9 Dirty bit is used ot show
A. Page with corrupted data
B. Wrong page in memory
C. Page that a modified after being loaded in the cache memory
D. Page that is less frequently accessed
10 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

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