You'll get examined by someone who knows about boxing. You'll probably just get asked to show examples of punches, head movement, footwork etc. If I remember correctly I had to do 3 sports and each one I was graded out of 10 and somehow that turned into a grade :S But that was only the practical side, you still gotta do the exams and coursework to get A* overall. You also have 1 chosen sport where you have an oral exam, they ask you **** questions about the sport. But for boxing I assume you already box and know the basics so you should be good. I can't imagine they'd make you jump in the ring against Floyd Mayweather and expect you to own him.