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PPSC Computer Science Chapter 19 Operating System Online Test MCQs With Answers

Question # 1

For multiprogramming operating system.

Choose an answer

Special support from processor is essential

Special support from processor is not essential

Cache memory is essential

None of abvoe

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Question # 2

Which among following scheduling algorithms give minimum average waiting time.

Choose an answer

FCFS

SJF

Round rabin

On priority

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Question # 3

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

Choose an answer

Cold booting

Boot recording

Booting

Warm booting

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Question # 4

Which scheduling policy is most suitable for time shared operating system.

Choose an answer

Shortest job first

FCFS

LCFS

Round robin

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Question # 5

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

Choose an answer

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Question # 6

Which command in LINUX is used for description any command.

Choose an answer

Help

Man

Detail

Short detail

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Question # 7

Remote computing services involves the use of time sharing and

Choose an answer

Multiprocessing

Interactive processing

Batch processing

Real time processing

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Question # 8

Which type of software can be used to merge data of two files in one files.

Choose an answer

System software

Networking software

Documenting software

utility software

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Question # 9

Memory protection is normally done by

Choose an answer

The processor and the associated hardware

The operating system

The compiler

The user program

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Question # 10

What are the global locks.

Choose an answer

They synchronize access to local resources.

They synchronize access to global resources

They synchronize access to local and global resources

None of above

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Question # 11

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

Choose an answer

Diff

differ

Cmp

Compare

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