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Operating System (OS)

Operating System (OS)
Which is not application software?

Page Maker
WinWord XP
Windows NT
Photoshop

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Operating System (OS)
Which one of the following is not a layer of operating system?

Kernel
Shell
Application program
Critical selection

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Operating System (OS)
What should be the extension to execute files?

All of these
BAT
EXE
COM

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Operating System (OS)
How can you optimize performance of your computer?

Delete unused files
Scan for virus
All of above
Defrag disk

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Operating System (OS)
For how many processes which are sharing common data, the Dekker's algorithm implements mutual exclusion?

2
None of these
3
4
1

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Operating System (OS)
The state transition initiated by the user process itself in an operating system is

timer run out
block
None of these
dispatch
wake up

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MORE MCQ ON Operating System (OS)

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