Back in 2000 at Amazon, HR somehow decided to have me do the phone
interviews for neteng. I'd go through questions on routing and what not,
then at the end I would ask questions like, "Who was Jon Postel? Who is
Larry Wall? Who is Paul Vixie? What are layers 8 & 9? Explain the RTFM
protocol. What is NANOG?" Those answers (or long silences) told me more
about the candidate than most of the technical questions.