Microsoft Software Engineer - Internship interview questions

After doing an on-campus interview which lasted for 30 minutes, I got an invitation to attend an interview in Microsoft headquarters in Seattle. During the Seattle interview, there were 4 back-to-back interviews where the third one was a lunch interview and the last interview was with the manager of the team that I was assigned. 3 of the interviews asked data structure questions and one of them asked an object-oriented design question.

Got an email a couple weeks after career fair saying they wanted to interview me. It was a 30 minute in-person, 1v1 interview on campus (this was today). The whole interview was "Tell me about yourself", do this 20 minute coding problem, and "do you have any questions for me?" Needless to say, not what I was expecting. No behavioral questions at all. Just those three that I mentioned above.