"Kubernetes backed by S3-compatible object storage for WAL archiving — giving you 11 nines of durability on your backups .. " - that might be the case with AWS

"Kubernetes backed by S3-compatible object storage for WAL archiving — giving you 11 nines of durability on your backups .. " - that might be the case with AWS S3 but maybe not with Minio or even Ceph when you need to operate it yourself. Anyway that interview question is so stupid it hurts. I would never expect just a simple answer to an interview question and mark it off as "done". It's much more valuable to get into a dialogue and see how the candidate is approaching things.