National Instruments Digital Hardware Engineer interview questions

it is a 30-45 mins 1-1 interview locating at a hotel conference room near my college. I met the interviewer on the campus career fair and info session. They let me choose to have technical or behavior interview first. The overall interview is not that hard.

Gave the resume at the career fair and got an email the next day. The interview was held at the campus after three days. Two people interviewed me - 1) Manager, 2) Our university alumnus.