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

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

Question # 2

A series of statements explaining how the data is to be processed is called.

Question # 3

How many links are created when we create a directory file.

Question # 4

Which command in LINUX is used for description any command.

Question # 5

Main function of shared memory is.

Question # 6

Which operating system use write through catches.

Question # 7

By which command content of a file can be searched.

Question # 8

What is meaning of ILP32

Question # 9

A high paging rate

Question # 10

Scissoring enables

Question # 11

What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.

Question # 12

Which process is known for initializing a microcomputer with its OS.

Question # 13

A thread is.

Question # 14

Disk scheduling includes decinding

Question # 15

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

Question # 16

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 17

Remote computing services involves the use of.

Question # 18

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

Question # 19

Which command is used to set limits on file size.

Question # 20

Banker's algorithm deals with

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 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
2 Which command is used to record a user login session in a file.
A. script
B. Record
C. Copy
D. Session
3 Solaris is product of.
A. IBP
B. IBM
C. Microsoft
D. Sun microsystmes
4 Problem of thrashing is affected significantly by
A. Program structure
B. Program size
C. Primary storage size
D. All of above
5 Printer in the file structure can be found in.
A. /etc
B. /html
C. /www
D. /dev
6 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting
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 Poor response times are caused by
A. Busy processor
B. High I/O rate
C. High paging rates
D. any of above
9 A publics key encryption system.
A. Allows only the correct sender to decode the data
B. Allows only the correct receiver to decode the data
C. Allows any one to decode the data
D. None of above
10 Daisy chain is a device for
A. Connecting a number of controllers to a device
B. Connecting a number of device to a controller
C. all of above
D. None of above

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