Disc Operating System (DOS)
Suppose you had an incurable computer virus and decided to wipe out all the data and partitions on your hard drive and reformat. What is the order in which you must delete the partitions?

Logical, Extended, Primary
None of these
Extended, Logical, Primary
Logical, Primary, Extended
Primary, Extended, Logical

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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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