These 2 questions were asked in many different ways over the whole process. Do your background on the stream of consulting you're joining, the position of that stream as compared to Deloitte's rivals and do not bad-mouth your ex, current employer!!
Just left FDM as a PMO. So did the other half without a job. I'd stay away. They have sacked so many for stupid reason like being late by 2mins and then the trainee owed 20k for training. The training can be done for few hundred off the net. Stay away is my advice
This question was difficult as I couldn't give a precise answer. I just stated that the information provided in the case study wasn't detailed enough and that I would have to work it out and bring the results to the next meeting. Seemed to work.
Look up some of their recent case studies and talk about the project that has been accomplished or is in the process of being accomplished. Have your say as to why you believe you would be a good fit for that project as well!