I have worked extensively on Informatica Developer Big Data Edition and Power Center. Though the interviewer was really strange, I don't remember the name but he didn't looked at the resume, didn't asked me about my project and experience, nothing about what I have been doing for the past 28 months in my current company. He had mugged up all the questions and even if the answers were right he was not convinced. I checked all the answers once I came back and I have around 85% answers correct for every question. Still was filtered in the first round itself. For me it was a sheer waste of time and effort and I really think Deloitte should hire some good recruiters who are technically sound and believe in formal business interaction about the experience and the skill set instead of interrogation with mugged up questions. Before going for the interview I very well read about the interviews at Deloitte, It does not have to be an interrogation but needs to be a business conversation. Unexpected to come this from Deloitte.