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

00:00
Question # 1

Which among following scheduling algorithms give minimum average waiting time.

Question # 2

Printer in the file structure can be found in.

Question # 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.

Question # 4

Which command is used to record a user login session in a file.

Question # 5

Macintosh computer uses

Question # 6

Which command is used to copy files.

Question # 7

Dynamic allocation of storage areas with VSAM files is accomplished by

Question # 8

By which command content of a file can be searched.

Question # 9

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

Question # 10

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

Question # 11

All the abbreviations is vi editor can be shown by

Question # 12

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

Question # 13

Distributed systems should.

Question # 14

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

Question # 15

Which one is true.

Question # 16

Which among following is considered as super daemon.

Question # 17

Which of the following does not interrupt an running process.

Question # 18

A thread is.

Question # 19

Which operating system use write through catches.

Question # 20

In which scheduling policies context switching never takes place

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PPSC ComputerScience Chapter 19 Important MCQ's

Sr.# Question Answer
1 Default permissions of file can be changed with.
A. Group
B. Chperm
C. chmod
D. Chall
2 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.
3 Dynamic allocation of storage areas with VSAM files is accomplished by
A. Hashing
B. Control splits
C. Over flow areas
D. Relative recording
4 Tee command is used in LINUX for.
A.
Read from an input and write to a standard output and file.
B. Read from an input
C. Write to an output
D. None of above
5 For multiprogramming operating system.
A. Special support from processor is essential
B. Special support from processor is not essential
C. Cache memory is essential
D. None of abvoe
6 if the CPU scheduling policy is FCFS then what would be average waiting time.
A. 10 ms
B. 10.8 ms
C. 12 ms
D. 12.8 ms
7 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.
8 What is the maximum number of processes that may enter simultaneously inside the critical section to avoid race condition.
A. One
B. Two
C. Three
D. Four
9 Which is the most important for Multi taskiing.
A. Modularity
B. Time sharing
C. Multi programming
D. Multi user
10 Which process is known for initializing a microcomputer with its OS.
A. Cold booting
B. Boot recording
C. Booting
D. Warm booting

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