Disk Operating System (DOS) Question:
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DIR command is used to:

a. Display a list of files in a directory
b. Display contents of files in directory
c. Display type of files in a sub directory
d. All of above

Answer:

a. Display a list of files in a directory

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CHKDSK command is used to:

a. Analyze the hard disk error
b. Diagnose the hard disk error
c. Report the status of files on disk
d. All of the above		CHKDSK can be used to find:

a. Disk's bad portion
b. Occupied space
c. Free space
d. All of above