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

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

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Disc Operating System (DOS)
Which statement is valid about "TIME" command?

Time command is used to display and allow changes to the system time
MS DOS displays the time in 12-hour or 24-hour format
All of above
Time format can be changed by changing in country setting in config.sys file

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