Docker & Kubernetes Interview Questions & Practice

Sample Docker & Kubernetes interview questions

• Containers Vs Vms

  Can you explain the difference between a container and a virtual machine, and why containers start so much faster?

• Images Layers

  Can you explain how Docker image layers work, and why the order of instructions in a Dockerfile affects build speed?

• Networking

  Can you explain how containers on the same Docker network can reach each other by name?

• K8s Orchestration

  Can you explain the difference between a Pod, a Deployment, and a Service in Kubernetes?

• Scaling Deployments

  Can you explain the difference between horizontal and vertical scaling in Kubernetes, and which is more common for stateless services?

• Storage Volumes

  Can you explain why containers are ephemeral, and what problem a volume solves?

• Config Secrets

  How do you pass configuration into a container without baking it into the image?

• Debugging Operations

  How would you debug a container that keeps crash-looping?

These are a few examples — each real session pulls 5 questions at random from a larger pool across every category above, so repeat sessions won't repeat the same set.

Frequently asked questions

Is this a live-coding Docker & Kubernetes interview?

No. Docker & Kubernetes practice on Hone is a spoken, conceptual discussion — you explain your reasoning out loud rather than writing or sharing code.

How many Docker & Kubernetes questions are there?

Each session pulls 5 questions at random from a larger pool across multiple categories, so repeat sessions don't repeat the same set.

Can I choose the difficulty?

Yes — easy, medium, or hard, chosen right before you start. It changes how hard the interviewer pushes on follow-ups and how strictly it scores your answers.

Is it free?

Yes — every account gets 5 interviews a month, any track, for free. Pro upgrades to unlimited interviews for $99/month.