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Top 37 Kubernetes (K8s) Interview Questions & Answers (2026)
37 Questions
18 Beginner
10 Intermediate
9 Advanced
About Kubernetes (K8s)
This technology is widely used in software development and is a frequent topic in technical interviews at companies of all sizes.
What to Expect in a Kubernetes (K8s) Interview
Interviews cover both foundational concepts and practical application of this technology, with questions ranging from definitions to architectural decision-making.
How to Use This Guide
Work through questions in order of difficulty to build your understanding progressively. Bookmark challenging questions and revisit them before your interview.
Curated by Tech Baithak Editorial Team · Last updated: May 2026
Beginner
18 questions
Core concepts every Kubernetes (K8s) developer must know.
01
What is Kubernetes?
02
What is the Kubernetes architecture?
03
What is a Pod in Kubernetes?
04
What is a Deployment in Kubernetes?
05
What are Kubernetes Services?
06
What are Kubernetes namespaces?
07
What are ConfigMaps and Secrets in Kubernetes?
08
What is a StatefulSet in Kubernetes?
09
What is a DaemonSet in Kubernetes?
10
What is Kubernetes resource management?
11
What is Kubernetes Ingress?
12
What are Kubernetes labels and selectors?
13
What is Kubernetes Horizontal Pod Autoscaler (HPA)?
14
What is kubectl and common commands?
15
What are Kubernetes Probes (liveness, readiness, startup)?
16
What is Kubernetes networking model?
17
What is Kubernetes RBAC?
18
What are Kubernetes volumes and persistent storage?
Intermediate
10 questions
Practical knowledge for developers with hands-on experience.
01
What is Helm in Kubernetes?
02
What is Kubernetes node affinity and pod affinity?
03
What is Kubernetes network policy?
04
What is Kubernetes resource monitoring and observability?
05
What is Kubernetes GitOps with Argo CD or Flux?
06
What is Kubernetes security hardening?
07
What is Kubernetes cluster upgrade strategy?
08
What is service mesh (Istio/Linkerd)?
09
What is Kubernetes cluster autoscaling?
10
What is Kubernetes multi-cluster management?
Advanced
9 questions
Deep expertise questions for senior and lead roles.
01
What is the Kubernetes scheduler and custom scheduling?
02
What is etcd in Kubernetes and how to back it up?
03
What is Kubernetes operator pattern?
04
What is Kubernetes custom resources and CRDs?
05
What is Kubernetes advanced networking with eBPF (Cilium)?
06
What is Kubernetes StatefulSet advanced patterns?
07
What is Kubernetes application delivery with Kustomize?
08
What is Kubernetes disaster recovery and backup?
09
What are Kubernetes admission controllers?
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37 questions total