Booz Allen Hamilton interview questions

I was referred by a current BAH employee. I was then called 3 times for "preliminary" information and interviews. These were by HR folks who were more looking for personnal information and asked generic questions. Then a month later I was asked to come to a "speed dating" group interview format. I sat at the same table in a large room with 15 other candidates, and I had 3 Booze employees rotate to talk to me for 30 minutes each. They were very nice and asked about my background and why I wanted to work for Booze. They did ask about any challenging work experiences I might have had. Then I waited for 2 months before I heard anything from HR. I called several times to ask for updates, and was told they would contact me soon. When I got a job offer from another company I told the employee who referred me, but HR still didnt contact me for another 1.5 months. By then I had accepted another job.