First, I had two technical interviews, which were back-to-back and by phone, each lasting 45 minutes. I coded in a shared Google Doc with the interviewer. They asked standard factual questions about Java and OOP (which I had stated I was familiar with) and requested I work through a programming problem in the language of my choice (I chose Perl; the interviewer wasn't familiar but was fine with that).

I made some mistakes in my code, such as not checking some boundary conditions. The interviewer asked, "What about when x = y?" I fixed it, and it was fine.

Then, I had two interviews with potential hosts. They asked me what I wanted to get out of the internship, what experience I had with the technologies they used, and how I would approach various research and engineering problems.

Google says you're not supposed to repeat specific questions. I don't remember anything anyway. Everything was pretty standard.