Creating functions to manipulate data. Going over how you would build something out in theory.
Sigiloso
I highly recommend colt steels course for data structures and algo's.on udemy. He is a legendary teacher and although you might not get an algo question. It will keep you mentally sharp after a bootcamp. I also recommend just being super sharp with your skills going into this. It would not be ideal to take a week off of coding before this interview.