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Top 50 OpenShift Interview Questions for 2026
Introduction
OpenShift has become a core platform for DevOps and cloud-native applications. In 2026, companies expect professionals to understand both concepts and real usage.
This blog covers the top 50 OpenShift interview questions with answers.
It starts from basics and moves to advanced topics.
Each answer is short and easy to understand.
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OpenShift Basics
1. What is OpenShift?
OpenShift is a container platform by Red Hat.
It helps teams build, deploy, and manage applications using Kubernetes.
2. How is OpenShift different from Kubernetes?
Kubernetes is a container orchestration engine.
OpenShift adds security, automation, CI CD, and developer tools.
3. What are the main components of OpenShift?
worker nodes, controller manager, scheduler, etcd, and API server.
4. What is an OpenShift cluster?
A cluster is a group of master and worker nodes.
They run and manage containerized applications.
5. What is a project in OpenShift?
...
... A project is a Kubernetes namespace with extra features.
It helps isolate users, resources, and permissions.
6. What is a pod?
A pod is the smallest deployable unit.
It contains one or more containers.
7. What is a deployment?
A deployment manages application rollout and updates.
It supports scaling and rollback.
8. What is a service?
A service exposes pods internally or externally.
It provides stable networking.
9. What is a route?
A route exposes services to external users.
It uses built-in OpenShift routing.
10. What is the OpenShift web console?
It is a graphical interface.
It helps manage clusters and applications.
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Architecture and Core Concepts
11. Explain OpenShift architecture.
It follows a master-worker model.
Masters manage, workers run workloads.
12. What is the master node role?
It controls scheduling and cluster state.
It does not run application containers.
13. What is a worker node?
Worker nodes run pods and containers.
They handle application workloads.
14. What is an Operator?
An Operator automates application lifecycle tasks.
It uses Kubernetes APIs.
15. What is Operator Lifecycle Manager?
OLM manages Operator installation and upgrades.
16. What is BuildConfig?
BuildConfig defines how application images are built.
17. What is Source-to-Image?
S2I converts source code into container images automatically.
18. What is an image stream?
It tracks changes in container images.
It helps with version control.
19. What is the internal image registry?
It stores and manages container images inside OpenShift.
20. How does OpenShift handle networking?
It uses software-defined networking.
Pods communicate through services and routes.
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Security in OpenShift
21. What are Security Context Constraints?
SCC controls what pods can do.
It improves container security.
22. How does OpenShift improve security?
It runs containers as non-root by default.
23. What is RBAC?
Role-Based Access Control manages user permissions.
24. How are secrets managed?
Secrets store sensitive data like passwords securely.
25. What is a service account?
It allows pods to access APIs securely.
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CI CD Pipeline Automation
26. How does OpenShift support CI CD?
It integrates with tools like Tekton and Jenkins.
27. What is Tekton?
Tekton is a Kubernetes-native CI CD framework.
28. How are pipelines triggered?
Through webhooks, Git commits, or manual runs.
29. How are deployments automated?
Using pipelines and deployment strategies.
30. What is rollback?
Rollback restores a previous stable version.
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Storage and Networking
31. What storage options exist?
Block, file, and object storage are supported.
32. What is a Persistent Volume?
It provides long-term storage for pods.
33. How does OpenShift handle load balancing?
It distributes traffic using services and routers.
34. Ingress vs Route?
Routes are OpenShift-specific.
Ingress is Kubernetes-native.
35. How does OpenShift support hybrid cloud?
It runs consistently across on-prem and cloud.
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Monitoring and Logging
36. How does OpenShift monitor apps?
Using Prometheus and Grafana.
37. What logging tools are used?
ELK stack or Loki.
38. How do you check pod health?
Using readiness and liveners probes.
39. How are alerts handled?
Alert manager sends notifications.
40. What is observability?
It tracks metrics, logs, and traces.
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Advanced and Scenario-Based Questions
41. How do you scale applications?
Using horizontal pod autoscaling.
42. How do zero-downtime deployments work?
With rolling updates and health checks.
43. How are clusters upgraded?
Through controlled, rolling upgrades.
44. How does OpenShift support AI workloads?
By supporting GPUs and ML operators.
45. What is OpenShift virtualization?
It runs virtual machines on Kubernetes.
46. How do you manage multiple clusters?
Using Red Hat Advanced Cluster Management.
47. What is GitOps?
Git becomes the source of truth for deployments.
48. How is disaster recovery handled?
Using backups and multi-cluster setups.
49. How do you troubleshoot issues?
Check logs, events, and pod status.
50. Why is OpenShift future-ready?
It supports cloud-native, AI, and automation needs.
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FAQs
Q. Is OpenShift good for beginners?
Yes. OpenShift is beginner-friendly when learned step by step.
With proper labs and guidance, learners can build confidence quickly.
Q. How long does it take to learn OpenShift?
Basic concepts can be learned in 4–6 weeks.
Advanced skills require real project practice.
Q. Which training institute is recommended for OpenShift learning?
Many learners prefer Visualpath training institute because it focuses on hands-on practice, real-time use cases, and interview preparation.
Q. Is OpenShift still relevant in 2026?
Yes. OpenShift continues to grow due to enterprise adoption and cloud-native demand.
Q. Does OpenShift help in DevOps job roles?
Yes. OpenShift skills are highly valued in DevOps and cloud engineering roles.
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Conclusion
OpenShift has become a powerful platform for building and managing modern applications. As organizations move toward automation and cloud-native practices, understanding this platform is a strong advantage for professionals.
To succeed, focus on understanding concepts, working on live projects, and staying updated with platform changes. With the right preparation approach, you can confidently move forward in your DevOps career in 2026.

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