I did the interview about a week ago and got through it, here were the questions I prepared for based on my research on Wikijobs. Most of them got asked so I was fully prepared
What do you think you will be doing in your first year at Deloitte?
What do you think you will enjoy the most?
Name some clients of Deloitte.
Why have you applied to Deloitte?
Tell me about the work of professional services firms.
Tell me more about your service line.
Tell me something you have learnt about Deloitte from your research?
It’s a very short interview and I was asked only 3 or 4 questions. The HR people know what boxes they have to tick so they are quite terse, just be prepared (I had my answers all laid out in front of me in bullet point) and you’ll breeze through it. Good luck!