They will be the standard questions as well as some that may catch you off guard. Be yourself, but your very best positive self. I'll let others cite specifics on the questions.
Although I am the Ultimate HCopter parent, surprisingly I did not practice interviews with my DDs, although I gave them insight into what I was thinking when I interviewed candidates at (investment bank). As a parent, you only know 1/16 of your child. When they were born, you were the whole pie - but as they get older, others have positive impact and shape your child. So you only see part of who they really are. For that reason, I don't want to interview them, and have any influence on the other 15/16ths.
To the candidate, you do not ever want to walk away from an interview saying, I wish he had asked me this, or that.....so get in your mind 5 things you want to convey in the interview that are most compelling about why you are the ideal candidate for that program, SA, etc. You will be asked questions you weren't expecting, or about things you aren't an expert. However, you are the expert of YOU. Make sure you get in everything about YOU. Don't let the interview veer off into something not about you.