Top 25 Helm Interview Questions and Quiz.

Beginner-Level Helm Interview Questions

1. What is Helm?

Answer: Helm is a package manager for Kubernetes that helps define, install, and upgrade applications using Helm Charts.

2. What is a Helm Chart?

Answer: A Helm Chart is a collection of files that describe a Kubernetes application, including templates, configuration, and metadata.

3. What are the main components of a Helm Chart?

Answer:

• Chart.yaml
• values.yaml
• templates/
• charts/
• templates/_helpers.tpl

4. What is the purpose of values.yaml?

Answer: It stores default configuration values that can be overridden during deployment.

5. What is a Helm Release?

Answer: A release is a running instance of a Helm chart deployed in a Kubernetes cluster.

Intermediate-Level Helm Interview Questions

6. How do you install a Helm chart?

Answer:

helm install release-name chart-name

7. How do you upgrade a Helm release?

helm upgrade release-name chart-name

8. How do you rollback a Helm release?

helm rollback release-name revision-number

9. What are Helm repositories?

Answer: Helm repositories are locations where packaged charts are stored and shared.

10. How do you add a Helm repository?

helm repo add repo-name repo-url

11. What is Helm templating?

Answer: Helm uses Go templating to dynamically generate Kubernetes YAML manifests.

12. What are Helm hooks?

Answer: Hooks allow you to run scripts at specific lifecycle events such as pre-install or post-upgrade.

13. What is dependency management in Helm?

Answer: Helm allows charts to depend on other charts, defined in Chart.yaml.

14. Difference between Helm 2 and Helm 3?

Answer:

• Helm 2 used Tiller (server-side component)
• Helm 3 removed Tiller and improved security

15. How do you override values during install?

helm install release-name chart-name -f custom-values.yaml

Or:

helm install release-name chart-name –set key=value

Advanced Helm Interview Questions

16. How does Helm handle secrets?

Answer: Helm itself doesn’t encrypt secrets by default, but you can integrate tools like sealed secrets or external secret managers.

17. What is helm lint?

Answer: It checks a chart for syntax errors and best practice violations.

18. What is helm template?

Answer: It renders chart templates locally without installing them in Kubernetes.

19. How does Helm support CI/CD pipelines?

Answer: Helm can be integrated with CI/CD tools like:

• Jenkins
• GitHub Actions
• GitLab CI/CD

It automates deployments, rollbacks, and version control.

20. What is Helm rollback strategy?

Answer: Helm stores release history and allows reverting to a previous revision.

Scenario-Based Helm Interview Questions

21. How would you manage different environments (dev, staging, prod) using Helm?

Answer: Use separate values.yaml files for each environment and override during installation.

22. How do you debug a failed Helm deployment?

Answer:

• helm status release-name
• helm get all release-name
• kubectl logs
• helm lint

23. What is Helm chart versioning?

Answer: Helm uses semantic versioning defined in Chart.yaml.

24. How do you package a Helm chart?

helm package chart-directory

25. What is the difference between Helm and Kustomize?

Answer:
Helm uses templating and package management, while Kustomize modifies raw Kubernetes YAML without templating.

Quick Helm Quiz (MCQs)

Q1: Which file contains chart metadata?

A) values.yaml
B) templates.yaml
C) Chart.yaml
D) config.yaml

Answer: C

Q2: Which command validates a Helm chart?

A) helm check
B) helm validate
C) helm lint
D) helm verify

Answer: C

Q3: Which Helm version removed Tiller?

A) Helm 1
B) Helm 2
C) Helm 3
D) Helm 4

Answer: C

Final Tips for Helm Interviews

• Practice deploying sample apps in Kubernetes
• Understand Helm chart structure thoroughly
• Learn rollback and upgrade strategies
• Know how Helm integrates into DevOps pipelines
• Be comfortable troubleshooting real scenarios

Helm is a must-have skill for Kubernetes and DevOps engineers in 2026.