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A bad helm delete wiped half our objects. You keep telling me we have backups: what comes back, and what doesn't?

Two artifacts hide under 'Kubernetes backup' and they recover different things. Interviewers grade the misses: volume bytes, encryption keys, and everything that never lived in etcd at all.

Updated Sep 2026 · Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Two artifacts hide under 'Kubernetes backup' and they recover different things. Interviewers grade the misses: volume bytes, encryption keys, and everything that never lived in etcd at all.

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UP NEXT ON YOUR JOURNEY

Next in this trackFive teams share our platform and two are regulated. Where do you draw the tenancy line: namespaces, separate clusters, or vclusters?Next in this trackEvery pod carries a credential to our API server. How does service account authentication actually work, and how would you lock it down?Next in this trackYour app runs database migrations in an init container on every deploy. Defend or attack that pattern.

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