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Disc Operating System (DOS)

Disc Operating System (DOS)
3. What is the maximum length allowed for primary name of a computer file under DOS?

12
8
3
None of these

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Disc Operating System (DOS)
Which command will be used to display a column file compression ratio for each file of Double spaced disk?

DIR/W
DIR/S
DIR/B
DIR /C (/C switch introduced in DOS version 6.00)

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Disc Operating System (DOS)
Which command is executed before the others when a computer is first turned on?

Device=c:doshimem.sys
Prompt=$p$g
Patch c:dos
Device=c:emm386.exe

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Disc Operating System (DOS)
While working with MS-DOS which command is used to copy all files with extension .txt into one file named all.txt?

Copy *.txt all.txt
Copy a: *.txt
Copy *.txt a:
Copy *.txt c:

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Disc Operating System (DOS)
Which command of DOS is used to compare two floppy disks?

FORMAT A: B:
DISKCOPY A: B/V
DISKCOMP
DISKCOPY

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Disc Operating System (DOS)
RESTORE command is used to

Restore files from recycle bin
Restore files from disks made using the BACKUP command
Restore files which are deleted
Restore files which are deleted recently

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