One of my more embarrassing interviews was early in my career, after I'd be developing HFT trading systems. I'd never worked on a web app in my life, and was as

One of my more embarrassing interviews was early in my career, after I'd be developing HFT trading systems. I'd never worked on a web app in my life, and was asked the difference between 4xx and 5xx codes. I had no idea. Something I could have googled in about 10 seconds was the pass/fail criteria for an interview.