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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?

TYPE
None of these
CHKDSK
DISKCOPY
COPY

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Operating System (OS)
In memory systems, boundary registers

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

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Operating System (OS)
The principle of locality of reference justifies the use of

virtual memory
non reusable
None of these
cache memory
reenterable

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Operating System (OS)
To avoid the race condition, the number of processes that may be simultaneously inside their critical section is

1
16
8
None of these

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Operating System (OS)
The ___ is the drive containing the files to be copled

Source drive
USB drive
Destination drive
None of the listed here

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Operating System (OS)
Which is not a valid file system ?

FXZ
NTFS
FAT 16
FAT 32

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