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

What is the meaning of SVR 4

Question # 2

Seek analysis is for.

Question # 3

Which is signal user operating system.

Question # 4

Re location bits used by relocating loader are a pacified by

Question # 5

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

Question # 6

Printer in the file structure can be found in.

Question # 7

What is the command that can print lines of first file matching with second file.

Question # 8

All the abbreviations is vi editor can be shown by

Question # 9

In which scheduling policies context switching never takes place

Question # 10

Which of the following is always there in a computer.

Question # 11

Which one is true.

Question # 12

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

Question # 13

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

Question # 14

Which among following scheduling algorithms give minimum average waiting time.

Question # 15

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

Question # 16

What is meaning of ILP32

Question # 17

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

Question # 18

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

Question # 19

Super visor state is only allowed to.

Question # 20

Shortest job First executes first the job.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 What the name given to the values that are automatically provided by software to reduce keystrokes and improve a computer users productivity.
A. Defined values
B. Fixed values
C. Default values
D. None of the above
2 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
3 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.
A. Buffer cache
B. Spooling
C. Pooling
D. Virtual memory
4 Multiprogramming system
A. Are easier to develop than signal programming system.
B. Execute each job faster
C. Execute more jobs in the same time
D. Are used only on large main frame computers.
5 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
6 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
7 Which command is LINUX is concerned with backup.
A. tar
B. zip
C. cpio
D. untar
8 Distributed system should.
A. High security
B. Have better resource sharing
C. Better system utilization
D. Low system overhead
9 In the shell , by default all variables are considered and stored as.
A. Integer
B. String
C. Float
D. Chracter
10 In vi editor which command sets the number for all lines.
A. Set nu
B. Set ni
C. Set sn
D. Set sl

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