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What does the following command do?
$ mkdir dir dir/dir_01/dir_02
(a)create dir, dir_01 and dir_02
(b)Creates dir_02
(c) Creates dir only
(d)Throws an error

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Important Questions on Operating System
EASY
Which of the following Windows utilities will erase unwanted files?

MEDIUM
Which command is used to delete an existing or completely empty folder?

EASY
Which DOS command is used to delete one or more files __________

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Chdir is a command used to __________in MS-DOS.

EASY
Which is not DOS command__________

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MKDIR command is used to create ______

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The COPY command of MS-DOS, is used to______

EASY
First official version of MS-DOS was released in _____

EASY
Features of DOS_________

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_________and __________ used as wild card character in DOS.

