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

Size of virtual memory depends on

Question # 2

In which scheduling policies context switching never takes place

Question # 3

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 4

Memory protection is normally done by

Question # 5

What control character signals the end of the input file.

Question # 6

Remote computing services involves the use of time sharing and

Question # 7

Belady anomaly occurs in.

Question # 8

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

Question # 9

Re location bits used by relocating loader are a pacified by

Question # 10

Disk scheduling includes decinding

Question # 11

Which is signal user operating system.

Question # 12

Main function of shared memory is.

Question # 13

If two files on same partition point to the same inode structure they are called.

Question # 14

A high paging rate

Question # 15

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

Question # 16

Which operating system reacts in the acutal time.

Question # 17

To display disk consumption of a specific directory which command is used.

Question # 18

Which of the following does not interrupt an running process.

Question # 19

Daisy chain is a device for

Question # 20

Shortest job First executes first the job.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Semaphores are used to solve the problem of.
A. Race condition
B. Process synchronization
C. Mutual exclusion
D. Belady problem
2 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
3 which option of 'grep' displays the line number as well.
A. -n
B. -i
C. -d
D. -al
4 Which of following is not an advantage of multiprogramming.
A. Increased through out
B. Shorter response time
C. Ability to assign priories of jobs
D. Decreased system overload
5 Creating a job queue is a function of
A. Spooler
B. Interpolator
C. Complier
D. Drive
6 When did IBM released the first version of its disk operating system DOS version 1.0
A. 1981
B. 1982
C. 1983
D. 1984
7 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
8 Which command in LINUX is used for description any command.
A. Help
B. Man
C. Detail
D. Short detail
9 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
10 What is the name of values that are automatically provided by software to reduce keystrokes.
A. Data values
B. Default values
C. Defined values
D. Fixed vallues

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