DMI Applications Developer Intern interview questions

DMI came to the job fair at my school, I gave them my resume and they contacted me to interview. I had one one hour interview with two different teams at the same time. There were about six people in the room during the interview. They mostly focused on my resume, asked detailed questions about my work habits and schoolwork. I thought they were very friendly, I felt very comfortable talking to them, we got along great and I felt very good about the interview afterwards. I got my offer via email shortly after and started the security clearance part (lots of paperwork, fingerprints, calling old friends/landlords/coworkers). Unfortunately, after the 30 day limit on my clearance the offer expired.