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Disc Operating System (DOS)

Disc Operating System (DOS)
Which of the following filename extension suggests that the file is a backup copy of another file?

COM
BAK *
BAS
TXT

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Disc Operating System (DOS)
SYS command is used to

Copy DOS configuration files to a new disk
Update the DOS system files
Copy DOS system files to new disk
None of the listed here

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Disc Operating System (DOS)
After upgrading your computer to a new DOS version, an older application displays the error message "Incorrect DOS version". What should you do to run this application?

Restore the old DOS version
Use the DOS+ command
Contact the application's vendor support line
None of these
Use the SETVER command

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Disc Operating System (DOS)
Which command is used to see the sub-directory structure of drive?

Subdir
Tree
List
Subtree

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Disc Operating System (DOS)
MS-DOS developed in

1998
1996
1997
1984

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Disc Operating System (DOS)
The COPY command of MS-DOS, is used to:

copying one or more files on the same disk or directory
All of these
copying two or more files into a single file
copying files from one floppy disk to another floppy disk

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MORE MCQ ON Disc Operating System (DOS)

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