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Operating System (OS)

Operating System (OS)
While running DOS on a PC, which command would be used to duplicate the entire diskette?

None of these
COPY
CHKDSK
TYPE
DISKCOPY

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Operating System (OS)
Which of the following are loaded in safe mode ?

Mouse driver
Keyboard driver
All of the listed here
VGA drive

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Operating System (OS)
How do you connect internet in your system ?

My computer >> dialup networking
None of the listed here
Network neighborhood
Control panel >> modem

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Operating System (OS)
Supervisor state is

None of these
only allowed to the operating system
entered by programs when they enter the processor
required to perform any I/O
never used

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Operating System (OS)
Block or buffer caches are used

to improve disk performance
to speed up main memory read operation
None of these
to increase the capacity of main memory
to handle interrupts

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Operating System (OS)
In an absolute loading scheme, which loader function is accomplished by the loader

Allocation
Linking
None of these
Loading
Reallocation

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