Sutherland Java Support Engineer interview questions

HR was excellent but the technicall interview was awfull, the questions were not clear at all and the engineer was clearly annoyed at the answers I was giving as they were not complying with what he was imagining, but given that the questions where so open and vague and non-technical I really didn't understood what I did so wrong to the point of making him angry. No feedback given regarding my "wrong answers"