There’s a new series of practice tests for the Apple certifications! They are much more thorough and detailed than what you get on Apple’s web site, and the questions are multiple choice like the test, so it is a much more accurate way to prepare. They are iOS apps for iPhone and iPad, and they’re FREE! The only strange thing is, they’re quite hard to find on the iTunes store.
Search for “ReviseIT” or “Amsys” and you’ll find ReviseIT, the Lion 101+201 test. I noticed today they have also released prep tests for the Snow Leopard courses too. For free, why not give them a try?