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Disc Operating System (DOS)

Disc Operating System (DOS)
The _____ switch instructs DOS to display the directory list in a wide format.

/W
/B
/P
/O

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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?

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

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

EXE
SYS
INF
PRO

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Disc Operating System (DOS)
Which command is used to display all the files having the (.exe) extension but different filename?

Dir *.exe
Dir *.sys
Dir filename.ext
Dir filename.*

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Disc Operating System (DOS)
While working with MS-DOS, which command is used to specify the colour display, 40 columns and color?

MODE CO40
None of these
MODE COLOUR
MODE/C
MODE CHANGE

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

Expanded memory
Conventional Memory
None of these
Reserved Memory
Extended Memory

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MORE MCQ ON Disc Operating System (DOS)

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