The point is that you can be a software developer without knowing this stuff off the top of your head. Naturally I would encourage anyone who doesn't know the a

The point is that you can be a software developer without knowing this stuff off the top of your head. Naturally I would encourage anyone who doesn't know the answers to these questions to go ahead and learn them if they want to, but you're probably not going to need them day to day, so his assertion that you're not a software developer unless you can answer his "final exam" is incorrect and demonstrates a certain level of ego I find unsettling. I didn't say "people who know the answers to these questions are difficult to work with", I said, "people who declare their knowledge as an absolute requirement are difficult to work with".