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Computer Science - Disk Operating System (DOS)

Exercise : Disk Operating System (DOS) - Section 1
26.
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
Contact the application's vendor support line
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
27.
When executed from a bootable hard drive, which command will make a formatted floppy disk bootable?
COPY C:\DOS\COMMAND.COM A:\
ATTRIB C:\*.SYS A:\
XCOPY C:\DOS\*.* A:\
SYS C: A:
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
28.
Which of the following commands allows you to make a directory?
MAKE
DIR
MD
DD
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
29.
While working with MS-DOS, which command is used to specify the colour display, 40 columns and color?
MODE COLOUR
MODE/C
MODE CO40
MODE CHANGE
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
30.
Which DOS command allows you to compress existing disks and to create new compressed volumes?
DEFRAG
DBLSPACE
SCANDISK
MSAV
None of the above
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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