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

Belady anomaly occurs in

Question # 2

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

Question # 3

Which of following is not an advantage of multiprogramming.

Question # 4

For multiprogramming operating system.

Question # 5

In real time OS, which is most suitable scheduling scheme.

Question # 6

Which among following is considered as super daemon.

Question # 7

Which command is used to copy files.

Question # 8

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

Question # 9

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 # 10

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

Question # 11

Re location bits used by relocating loader are a pacified by

Question # 12

Which one shows the name of the operating system.

Question # 13

Dijkstra's algorithm deals with

Question # 14

Which among following scheduling algorithms give minimum average waiting time.

Question # 15

All the abbreviations is vi editor can be shown by

Question # 16

Poor response times are caused by

Question # 17

Which operating system reacts in the acutal time.

Question # 18

What is the meaning of SVR 4

Question # 19

In vi editor which command sets the number for all lines.

Question # 20

Tee command is used in LINUX for.

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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.
2 Re location bits used by relocating loader are a pacified by
A. Relocating loader
B. Assembler
C. Translator
D. Linker
3 Which of the following is always there in a computer.
A. Batch system
B. Operating system
C. Time sharing system
D. Controlling system
4 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
5 Which command is used to copy files.
A. cp
B. copy
C. mv
D. move
6 Poor response times are caused by
A. Busy processor
B. High I/O rate
C. High paging rates
D. any of above
7 Size of virtual memory depends on
A. Size of data bus
B. Size of address bus
C. Size of main memory
D. None of above
8 Belady anomaly occurs in
A. Optimal replacement
B. FIFO
C. LRU
D. Both in FIFO and LRU
9 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
10 By which command content of a file can be searched.
A. grep
B. search
C. srh
D. show

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