Oops that is incorrect. The correct answer for this months quiz is number 3. DOS also known as MS-DOS is not a variant of UNIX or Linux. Additional information about MS-DOS can be found on our MS-DOS page. Additional information about UNIX, Linux and its variants can be found on our UNIX page.

Of the 63,486 people who have answered this quiz question 38,051 have answered it correctly and 25,435 have answered it incorrectly. Based off these results this question has been given a difficulty level of medium.

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