Interviewer tagged me and I thought I'd go along with it for the fun. I'm a systems engineer not a developer so YMMV.
First stage interviewer put me through a basic aptitude test ("what is netstat?", "what's the expected output of dig?") which was fine and I answered them all with a fair degree of correctness but the questions quickly went on to different programming languages, and while I've done some small things and I definitely know my way around a bourne shell I didn't get spectacular marks honestly, mostly because he was asking programming questions and I haven't had as much exposure to code as I'd like.
the next week I receive what I thought was a follow up call, but it was another round of preliminary questions.. around 2 questions in, and I realise these are the same exact questions I answered the week before. I'm a bastion of honesty, and while I knew the answers to all his questions now (because curiousity made me look up the ones I had failed.) I felt I should tell him that he asked me these questions before. I did.. he fell silent.. "are you sure"
"Yeah, your next question is about netstat"
".. oh.. well I don't have your results"
"Do you have any other questions to ask, you can reask me questions but my success rate will be higher this time"
"no, we'll contact you in 6 months"
Well, he didn't, but that process shook me a bit.. I certainly wouldn't call it stellar, and I'm likely blacklisted from interviewing at google now as I don't think I've had recruiter spam from them in a long time.