The team was interviewing for works completely in C#; so I was asked pretty much all technically questions related to OO programming and managed programming languages. It was a very broad range of questions so be prepared for anything. One topic that they really drilled down on was memory management in C#. Just because its a managed language doesn't mean you don't have to think about managing memory appropriately, especially when dealing with a massive project. Make sure you know why not to throw an exception in a dispose method.
