I did 4 interviews, all through my university. The interviews were 100% technical -- they were not interested in your standard boilerplate interview questions. I asked more of those during my chance to ask questions at the end. The first was a broad preliminary screening with an easy question about substrings, and the subsequent 3 were back-to-back-to-back. I strongly recommend Cracking the Coding Interview as a resource. I studied it for these interviews, and although none of the questions were exactly the same (one linked-list question was VERY similar), the overall strategies I learned from that book were helpful for every question.