When I interviewed with AWS, half the loop interviews were with remote staff. I was shown to a videoconferencing room and asked to wait. There was a pile of VC equipment but it wasn't connected. With five minutes before we were due to start, I decided this was part of the interview and plugged stuff in myself, powered it on, and clicked through some boot-time screens, guessing at the right inputs. A few minutes later…
No it wasn't. Source: I conducted +400 interviews for Amazon. We don't do weird or obscure tests. Your recruiter will explicitly tell you what to expect. It sounds like a mistake.
I beg to differ. The one and only time I've interviewed for an engineering role at AWS, I was told to be successful I would need to memorise a list of "management principles" handed down by none other than Bezos himself, all of which were meaningless generic platitudes that could have easily been copy pasted from anywhere. And sure enough, they quizzed me on them quite thoroughly during the interview process.
Between that, the "Bar Raiser", the extremely long hiring process, and the people who interviewed me, I'd seen enough red flags to bail out before they'd sent me an offer.