As a consultant, I got to do lots of interviews. I found that questions and programming problems go in fads or cycles. I often get the same programming proble

As a consultant, I got to do lots of interviews. I found that questions and programming problems go in fads or cycles. I often get the same programming problem at more than one company. After an interview, I go over the problems to see if I can tighten up the code, or to see what the nut is. If I am weak or unsure about one of my answers, I immediately go over the literature to understand the domain. The same question is sure to come up again. A couple of years ago it was the new java concurrency. This yea, not a single question about Java concurrency. But I did get FizzBuzz. :-)