Interview Question for Engineer at SiRF Technology:

One interviewer (I later was mt mentor in the software team) saw in my resume that I had won some Maths contest in my school. So he asked me to "derive" how I'd represent a negative decimal number as a binary notation. I was kind of unprepared for this. But he did make me feel easy & even helped me out in the whole process. At the end, we almost derived it together. It was very impressive of him as an interviewer.