During your preparations consider the following 3 questions. You should prioritize asking these questions above others.
“Can you tell me a little about the team I’ll be joining, such as how many people and what level of experience they have?”
The shift you need to do in your head is to treat the interview as a two-way conversation. You should be working out whether the position is right for you as much as you’re right for them.
“What skills do you require for this position?”
Just because you’ve seen the job advertisement and seen the list of skills and experience required, you should avoid *thinking* you know exactly what the employer wants.