Dr. Hielscher names a technique or protocol and you have to describe it, name its design principles and you can also describe details, if you know them and when it is enough, he will interrupt you. I'm not sure, if he really wants to know details or if he explicitly asks for details, when you don't describe them by your own. But when you tell him everything, you know there is less time, he can ask things you don't know ;) You can choose if you want to make the exam in German or English. The brain dump might not be complete but it covers at least the larger topics. There haven't been any topics other than the other brain dumps mention.