Like many others, I'll be taking the MySQL 5.6 certification exam at the end of this month. As Todd blogged, the quick reference pages are available online for the Developer Exam and the DBA Exam. I've long considered myself more of a DBA, so I know the the developer exam that I need to study up on these topics:
But there are also a few DBA topics I could benefit from a refresh on:
I'll be writing more on my experiences studying these topics (and which manual pages helped me out) in the coming days.