Kubernetes Interview Questions
128 questions
The most extensive topic on this site: RBAC and security context, storage (PV/PVC/StorageClass), workloads and controllers (Deployments, StatefulSets, DaemonSets, Jobs, CronJobs), autoscaling (HPA/VPA), scheduling and affinity, networking, cluster architecture, CRDs and operators, admission control, and cluster security hardening. Every question is a realistic production scenario — a pod stuck Pending, a webhook silently breaking scheduling, a StatefulSet rollout behaving unexpectedly — not a bare definition.
What's the difference in behavior between a container hitting its own memory limit versus the underlying node running out of memory overall?
IntermediateKubernetes6 min
How would you distinguish a genuine memory leak from a legitimately growing in-memory cache, using only Kubernetes-level metrics?
AdvancedKubernetesPrometheus8 min
Your container runs fine locally but repeatedly gets OOMKilled after you deploy it to Kubernetes. How would you investigate it?
IntermediateKubernetesContainers10 min
How do requests.memory and limits.memory affect Pod scheduling and node-level eviction behavior differently from each other?
IntermediateKubernetes6 min