They asked on-the-spot questions rather than examples from their website. Be sure to talk more about your resume & come up with an answer on the spot without taking too much time. They didn't ask "why you want to work for Booz Allen" which I find it dissappointed as I prepared my answer for it.

I was contacted by a Booz Allen Hamilton recruiter who said he was impressed by my resume and would like to schedule a phone interview. My interview day arrives and I am waiting by the phone, but no phone call. He admits he forgot and reschedules for the next week. The second interview day comes and he shows up 20 minutes late. We quickly go over my work history and my education. He rushed through the questions in 15 minutes and at the end assured me that he would be in contact about a second interview with hiring managers to discuss my background in depth. I email him twice with no answer over the next several weeks. He finally responds apologizing saying that he had been out of office and needs to check with his team. I wait another two weeks still no response. I email him again asking about the status of my candidacy and he has the same response "I've been out of office, let me check with my team". That was the last time I heard from him and last time I bothered reaching out. It seemed like he never really knew what he was doing and his lack of communication was very unprofessional. The whole process took over 2 months with only one interview completed. Complete waste of time and effort for a company I really wanted.