I was asked for technical interviews with two different groups. There was no HR part involved so far.

I applied through the university.

The interview invitation was sent by email.

We were offered a free dinner (Dell networking event) the night before interview day.

Basic data structures, string manipulation, and pointers.

Since I learned about these during freshman year, I pretty much forgot most of them by the time I was interviewed.

I didn't review because I thought the first round should be HR, but I was wrong...