whenever prospective employer has this type of CS trivia questions I lose interest to work in that environment regardless if I know or don't know answers. It shows lack of maturity and experience to understand what are actually characteristics to look for to determine good developer. This type of questions might be useful for non experienced candidates but it is fairly counterproductive for experienced candidates
Last year I interviewed a BigCorp which was all about these interviews. The first guy clearly told me that the project was sort of stuck and they needed to sprint to make it happen.
The interview was 99% math. The people who asked me question looked all smart alecs and their questions all seemed to indicate that they wanted to show me how intelligent they are, and how stupid I am.
By the end of the interview it was clear to me why they were stuck. Those people had absolutely no interest in building things. It was all about individual One-upmanship, and showing their little math and puzzle tricks they would have gathered by combined reading on the internet over the years.
