Congrats .
Industry knowledge would just be about aviation as a whole; in particular here in Aus and how the company is involved. Ie new routes and bases and where you see aviation heading etc.
Tech knowledge would be related to your specific type of licence If you've done any flying. Like flight controls, lift formula, aerodynamics and possibly some knowledge of your current training aircraft if you're at a GFPT level. Then maybe some MET and NAV style questions if you're doing PPL training.
If you haven't done any flying then hit up Wikipedia or do some Google searches on learning to fly.
Best of luck!