Roxy_Chick_1989
I have an aviation degree but the subject matter I studied has nothing whatsoever to do with flying. I have not done my CPL or ATPL subjects either, so in fact there were a lot of questions I could not answer. The interviewers would give suggestions and hints every now and then, so in the end I was able to end up with simplistic but accurate answers.
I think they are not really concerned at how much knowledge you currently possess, but whether you have the attitude and motivation required to succeed as a cadet pilot. As such you can count on them to ask you questions that are out of your level, because they want to know how you react when outside your "comfort zone". They are also interested in seeing if you possess a decent sense of logic and problem-solving ability.