During the codes, they asked me to dry run them. I wrote about 3 codes during interview which they asked me to. They are gentle, but then they keep on testing your confidence at all times during each question. If you don't know an answer, you better don't beat around the bush and you better don't deny that you don't know. What I did was, I told the interviewer that I know it, I've studied it. But I cannot recollect it now. In case I get selected, I shall be brushed up with the contents. Also, when they ask you, if you have some questions, in technical round- Ask the interviewer , what he expects of the candidate sitting before him. This expresses your involvement in the interview even after it, which lays a positive impact. Hope it helps :) Best Wishes