Most important aspects dealt with the technical ones. But this was 11 years ago, so I don't think they are very representative today.

Anyhow, Software engineering related questions were targeted as the most important ones.

Planning, requirements management, risks, peer reviews, quality assurance, and tracking and control were the key.

They were also interested if I knew something about CMM (now CMMi) and Six Sigma.

Some behavioral questions were also asked, but nothing relevant.

Having my first interview in another language with the director of the software center at that moment. He challenged me from the very first moment, without being aggressive but still very pushing. He did not even lower his pace when talking. Even though I was not really fluent in his language, I think he valued my honesty after all, since he gave his ok to continue the recruiting process.