DevOps Interview Prep

The Docker questions that separate someone who memorized definitions from someone who has actually debugged a container at 2am -- walked through with the reasoning an interviewer is actually listening for.

The Kubernetes interview scenarios that go beyond definitions -- debugging a crash-looping pod, explaining how a Service actually finds its pods, and reasoning correctly about resource requests and limits under pressure.

The Linux and networking questions every DevOps interview circles back to -- finding what's eating disk space, debugging a service that won't start, explaining TCP versus UDP in a way that connects to real design decisions, and tracing DNS resolution end to end.

The CI/CD and Git scenarios that come up constantly in real incidents -- a green pipeline hiding a broken deploy, rolling back safely, choosing between deployment strategies, and recovering from a force-push gone wrong.

The cloud and IaC scenarios that test real operational judgment -- a dangerous Terraform plan, handling secrets in a pipeline safely, designing around a region outage, and investigating a sudden cost spike.