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Disc Operating System (DOS)

Disc Operating System (DOS)
Which command be used to clear the screen and display the operating system prompt on the first line of thedisplay?

Md
Rename
Cd
cls

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Disc Operating System (DOS)
Which DOS command is used to detect, diagnose and repair logical and physical disk errors on both, uncompressed and Double space compressed drive?

SCANDISK
DEFRAG
MSAV
DBLSPACE
None of these

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Disc Operating System (DOS)
Which statement is correct?

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

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Disc Operating System (DOS)
Which command displays the list of all previous commands entered by the used?

DOSKEY
KEYDOS
COMMANDS/ALL
DIR/ALL

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Disc Operating System (DOS)
Disk copy command in DOS is used to

Copy contents of CD-ROM to another
All of the listed here
Copy a file
Copy contents of one floppy disk to another

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Disc Operating System (DOS)
Which internal DOS command clears the screen and places the DOS prompt in the upper left corner of the screen?

exit
cls
close
quit

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