The wierd classes of Qt Developer part1

For my work i have to learn Qt, have is a strong word but don't get it wrong. Qt is really neet :). BLStream want's me to be a certified Qt developer, so at 15 of June I'm going to write an exam. I'm very afraid because the requirements list is very long. Heres a lists of them:

1. http://qt.nokia.com/developer/learning/qt-curriculum/qt-essentials
2. http://qt.nokia.com/developer/learning/qt-curriculum/widget-ui-with-qt
3. http://qt.nokia.com/developer/learning/qt-curriculum/core-cpp-for-qt-developers

The goal is already a part of my wallpaper:

Example certificate

I will publish here a google doc when i decide that it is done with the solved requirements. It's worth 149€ so it's really a big thing in my carrier. Till then!