"Do you remember your high school days when the
teacher walks in and tells you to put everything away?
Well CIM is full of pop quizzes. The importance of the
pop quizzes is to ensure you are absorbing the
information. It's not mandatory to take the quiz, but
each section offers several quizzes to give you an
opportunity to test yourself before you continue to
the next section."
FULL STORY @ MRPCPRO (http://www.mrpcpro.com/reviews/cisco/cim-intro.htm)