OmniVista Solutions interview questions

I got contacted by a HR lady from DSM office. Had a phone interview where they went through some behavioral questions. Then I had a technical interview where they asked a lot about big O

The interview was rescheduled a few times but that was fine. When I finally met with them they asked me a lot about my high school career rather than college, which seemed weird to me. I was all ready to talk about my college extracurriculars relating to writing and they didn't seem to want to hear that. They kept asking about high school.