I went interview for a devops job that was heavily coding based. I have no experience coding outside of a few college courses and have worked purely infrastructure/networking.
They asked me if I was familiar with regex. I had never even heard of it before and thought he said regedit. I was very confused as to why such a random question like that would be asked, but answered confidently that I did. About 10 minutes later they wanted me to get on the whiteboard and work a regex (I heard him correctly this time) problem. Needless to say I did not get a call back.