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Operating System (OS)

Operating System (OS)
Which of the following command is used to switch between the window programs?

None of these
Alt+F4
Ctrl+Tab
Alt+Tab

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

EXE
BAT
All of these
COM

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Operating System (OS)
What is the name given to all the programs inside the computer with makes it usable?

None of these
Application software
Firm ware
System software
Shareware

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Operating System (OS)
In memory systems, boundary registers

track the beginning and ending of programs
are only necessary with fixed partitions
are used for temporary program variable storage
track page boundaries
None of these

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Operating System (OS)
Sleep is a good mode to use because

It makes computer fresh after it wakes up
It consumes low battery when you start it again
It saves power which in true is saving money
All of the listed here

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Operating System (OS)
Which of the following concept is best to preventing page faults ?

Hit ratios
The working set
Address location resolution
Paging

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