Here is a great revision tool if you want to test your knowledge of Mac OS X v10.7 (Lion) and Mac OS X v10.8 (Mountain Lion). Perhaps you are preparing to take the Mac OS X Support Essentials v10.7 Exam (9L0-410) or the Mac OS X Support Essentials v10.8 Exam (9L0-412) or the Mac OS X Server Essentials v10.7 Exam (9L0-515). Maybe you are preparing for a technical interview?
Over 400 practise questions.
You can select questions from any of the nine chapters of the Mac OS X Support Essentials v10.7/v10.8 curriculum or the eight chapters from the Mac OS X Server Essentials v10.7 curriculum.
Mimic exam conditions. Get tested with a random set of questions against the clock.
Track your history. The app keeps your previous tests which you can review as well as check your progress via a chart.