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Disc Operating System (DOS)

Disc Operating System (DOS)
Which command is used to undelete delete a bunch of files with extension doc that you have just deleted

Undelete
Undelete/all
Undelete *.doc
All of these

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Disc Operating System (DOS)
Which statement is correct?

Directories can be kept inside a file
Files can not be kept inside a directory
None of the listed here
1 millisec = 10 ^ 3 sec

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Disc Operating System (DOS)
Filename extensions help identify certain files. What filename extension identifies command files?

SYS
COM
BAT
EXE

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Disc Operating System (DOS)
While working with MS-DOS which key is used to get the p[revious command used:

F3
F1
F5
F4

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Disc Operating System (DOS)
DOS uses letters of the alphabet to designate disk drives. How many disk drives can DOS address (recognize)?

4
1
16
26

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Disc Operating System (DOS)
Which command in DOS can be used to recover accidentally deleted files?

RESTORE
RECOVER
UNDELETE
DELETE/CANCEL

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MORE MCQ ON Disc Operating System (DOS)

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