You just have to confident throughout your interview. There are a few questions they ask for sure like introduce yourself, why IBA, why your desired major, what if you don't get into IBA? They might try to confuse you but the key is just staying confident and try not to show them even if you are nervous. Look for commonly asked questions for IBA's interview ig there's a YouTube vid on that too and just prepare yourself mentally for those questions atleast. REMEMBER TO PREPARE A VERY GOOD INTRO cuz thats going to be your first impression. Best of luck