Kubernetes (Interview Essentials)
Kubernetes questions test operational intuition: scheduling, reliability, and debugging.
Core primitives
- Pods, Deployments
- Services and Ingress
- ConfigMaps and Secrets
- autoscaling (HPA) basics
Common failure modes
- misconfigured probes causing crash loops
- resource limits too low/high
- networking and DNS issues
Debugging approach
- check pod status/events
- check logs
- verify service endpoints
- isolate config changes