2 rounds. One rounds on campus and one rounds on site. Both rounds are behavorial questions. Very typical questions like Why Deloitte. Why Advisory. The others are questions like "Tell me a time when you XXXX". Can find a tons of them by google "Big 4 interview questions"
It will 2-3 interviews. Mostly questions based on your experience and basic concepts around risk and controls. Nothing too fancy in the interview process.
Make sure you are presentable in the interview and confident.
Interview questions [1]
Question 1
Explain you experience and why you want to do audit.
Took three interviews with leadership on the project. All one on ones 30 minutes each; two managers and one principal. All scheduled on the same week with a day in between, Monday Wednesday and Friday.
Interview questions [1]
Question 1
How would you update an information system that still needed to operate?
it is first an online interview, very simple, than a case study in group and then another interview the next say, which is more complex. You should stand out in the case study, without being to much, don't interrupt other people.