There were no difficult questions or anything unexpected or out of left field. I did quite a bit of research on CACI, specifically their role and contribution to the projects in the area I was interested in so I had a good understanding of responsibilities for the position. I would recommend doing similar research and being prepared to ask poignant and directed questions to the interviewer in regards to the position and department you are applying for as well as any 'read ahead' info in the event you are hired.
