Kubernetes Interview Questions
Real Kubernetes questions asked at top tech companies, with expert answers, plain-English explanations, code examples, and what interviewers are actually looking for.
Kubernetes has become the dominant container orchestration platform, and companies across cloud, SRE, DevOps, and backend engineering roles test it heavily. The questions below come from real interview experiences across companies including Google, Airbnb, LTIMindtree, and more.
What to expect in a Kubernetes interview
Conceptual understanding
Do you understand the architecture? Can you explain what a Pod, Deployment, Service, and Namespace are and how they relate? Most Kubernetes interview rounds start here.
Operational troubleshooting
Can you diagnose a failing Pod? Debug a CrashLoopBackOff? Identify why a Deployment is stuck? SRE and DevOps roles go deep here.
Security and hardening
Can you secure a cluster from image build to runtime? Increasingly tested at senior and lead levels, especially at security-conscious companies like Airbnb and Google.
Kubernetes questions on CurseAndCure
Browse all Kubernetes-related interview questions, each with a full expert answer, ELI5 explanation, code example, and interviewer insights.
SRE
How would you diagnose and troubleshoot a Pod that is continuously crashing or failing to start?
Topic: Troubleshooting, CrashLoopBackOff, kubectl
Read answer →
Security Engineer
How do you secure a Kubernetes cluster end-to-end, from image build to runtime?
Topic: RBAC, image scanning, network policies, runtime security
Read answer →
DevOps Engineer
Explain Kubernetes Deployment strategies: RollingUpdate, Recreate, Blue/Green, and Canary
Topic: Deployment strategies, zero-downtime releases
Read answer →
Core Kubernetes concepts interviewers test
- Pod lifecycle — how Pods are scheduled, started, and terminated; init containers; sidecar patterns; restart policies.
- Workload controllers — Deployments, StatefulSets, DaemonSets, Jobs, CronJobs, when each is appropriate and why.
- Networking — Services (ClusterIP, NodePort, LoadBalancer), Ingress, DNS resolution, Network Policies.
- Storage — PersistentVolumes, PersistentVolumeClaims, StorageClasses, volume mount patterns.
- Security — RBAC, ServiceAccounts, Pod Security Admission, Secrets management, network policies, image scanning.
- Observability — kubectl debugging, resource requests/limits, HPA, VPA, cluster metrics.
Companies that test Kubernetes heavily
| Company | Roles that test K8s | Depth |
|---|---|---|
| SRE, Cloud Engineer, DevOps | Deep, architecture + troubleshooting | |
| Airbnb | Security Engineer, DevOps | Deep, security focus |
| LTIMindtree | DevOps Engineer, Cloud Engineer | Mid, operational scenarios |
| Netflix | SRE, DevOps | Deep, reliability and scaling |
| Microsoft | Cloud Engineer, DevOps | Mid, Azure AKS integration |
How to prepare for Kubernetes interview questions
Get hands-on first
Set up a local cluster with kind or minikube and deliberately break things, then fix them.
Master kubectl for diagnosis
get, describe, logs –previous, exec, top — know these cold.
Learn the failure modes
CrashLoopBackOff, ImagePullBackOff, OOMKilled, Pending, Evicted.
Match depth to your role
SRE/DevOps go deeper into operational troubleshooting than Backend Developer roles.