Nothing new under the sun!
Before JAA was implemented, all exams (in JAA countries) were made by people teaching that particular subject.
When you spend so many hours in a classroom with the teacher/examinor he is bound to give you clues away. Even without the intention to do so, he will stress some parts of the course.
If the you pretend not to understood the stuff, and ask more lessons (against a nice payment) you will get the questions.
That happened to me on 2 subjects from my ATPL (before JAA) and got 100% on one and 95% on the other. (I wonder where the 5% went)
Is it called cheating; not to me, because I had the benefit of it. If someone else does it, then it is cheatin.
Anyway, what amount of the stuff learned in the ATPL theory, is used by an airline pilote every day? I guess around 5%.
All the rest is picked up during you flight training (IR, ME, MCC and type rating) and you cannot get Q&A on a sim.