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Q.

Four necessary conditions for deadlock to exist are: mutual exclusion, no-preemption, circular wait and

A

hold and wait

B

deadlock avoidance

C

race around condition

D

buffer overflow

E

None of the above

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MCQ

1.

The category of operating system that you most likely have running on your PDA computer is a ....... Operating system

A

Real time

B

Single user, single task

C

Single user, multitask

D

Multiuser, multitask

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2.

What do you mean by Memory Compaction?

A

Combine multiple equal memory holes into one big hole

B

Combine multiple small memory holes into one big hole

C

Divide big memory hole into small holes

D

Divide memory hole by 2

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3.

Poor response time are usually caused by

A

Process busy

B

High I/I rates

C

High paging rate

D

Any of the above

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4.

An incremental backup

A

should be done each month

B

uses more tapes

C

saves all files

D

saves only files that have recently changed

E

None of the above

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5.

Which of the following operating system does not implement the multitasking truly?

A

Windows 98

B

Windows NT

C

Windows XP

D

MS DOS

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