From http://www.w3schools.com (Copyright Refsnes Data)
You can test your XML skills with W3Schools' Quiz.
The test contains 20 questions and there is no time limit.
The test is not official, it's just a nice way to see how much you know, or don't know, about XML.
You will get 1 point for each correct answer. At the end of the Quiz, your total score will be displayed. Maximum score is 20 points.
Good luck! Start the XML Quiz
From http://www.w3schools.com (Copyright Refsnes Data)