Recently I was asked how to get the value of the upper four bits of a byte. It was asked as: how can I split a byte? Do I need to convert it to bitstring? If

Recently I was asked how to get the value of the upper four bits of a byte. It was asked as: how can I split a byte? Do I need to convert it to bitstring? If he was a front-end engineer I wouldn't be so surprised but he has 3 years experience working in telecoms, CompSci with networking module at UMass. Uses Wireshark on a regular basis. A very odd knowledge gap in this domain. So yes I think many engineers don't know these things.