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".

There is a huge difference between not knowing the answers off the top of your head and not being able to learn and understand the answers given 30 minutes and access to Google. If you fail the former that's fine in my book, if on the other hand you fail the latter then that might be reason for concern.