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Disc Operating System (DOS)

Disc Operating System (DOS)
Which command is used to clear the screen

All of the listed here
Cls
Clear
Clscreen

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Disc Operating System (DOS)
When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?

SYS C: A:
XCOPY C:DOS*.* A:
COPY C:DOSCOMMAND.COM A:
None of these
ATTRIB C:*.SYS A:

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Disc Operating System (DOS)
Which command is used to change the file name?

Ren
Both of above
Rename
None of above

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Disc Operating System (DOS)
Which switch should be used in the DIR command to view files in all directories?

/s
/l
/w
/p

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Disc Operating System (DOS)
4. Which of the following could be a valid DOS file specification?

NOSFILE.DOC
NOST.FILEDOC
NOSFILE.POST
NOSFILE.P.OST

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Disc Operating System (DOS)
Upper Memory blocks are located where?

None of these
Reserved Memory
Expanded memory
Conventional Memory
Extended Memory

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