KCNA

KCNA Kubernetes and Cloud Native Associate Guide

What the Linux Foundation's KCNA exam covers, its four weighted domains, cost and format, who it suits, and how to prepare, with the official page.

By Code Nexus team · 5 min read · Published 2026-09-25 · Updated 2026-09-29 · Reviewed by Code Nexus team

Official exam page

KCNA, the Kubernetes and Cloud Native Associate, assesses foundational understanding of Kubernetes and the wider cloud native ecosystem. It gives you a way to organise the concepts behind containers, orchestration, observability and delivery. This guide explains the exam and a practical preparation route, using the official Linux Foundation page for exam facts.

What is the KCNA certification?

KCNA is offered by The Linux Foundation, with the Cloud Native Computing Foundation (CNCF), which hosts Kubernetes. It is a foundational exam that validates conceptual knowledge of Kubernetes and the cloud native ecosystem.

It is deliberately not a hands-on exam. That makes it a good first step: you learn the vocabulary and the architecture before you are asked to operate a live cluster.

For anyone heading toward AI engineering, this is the operations half of the job. A model behind an API still has to be packaged, deployed, scaled and kept healthy.

What the exam looks like

• Format: online, proctored and multiple choice.
• Time: 90 minutes.
• Price: $250 for the exam only, with more expensive bundles that add a course or subscription.
• Validity: two years.
• Prerequisites: none.
• Question count and languages: not stated on the page we read, so check when you book.
• Passing score: the page we read does not state it. We have used 75%; confirm before you sit the exam.

What KCNA teaches

The exam has four domains.

Almost half the marks are Kubernetes fundamentals. If you understand the cluster, its objects and how workloads are scheduled, you are already close to half the exam. Orchestration, the second domain, adds another 28%.

What people underestimate

• The object model. How Pods, Deployments, Services and the other core objects relate.
• Workload health. What readiness, liveness and startup probes do, and what happens when each fails.
• Networking and storage. How a Service finds Pods and how data survives a restart.
• The wider ecosystem. Observability tools, standards and the CNCF's role are a smaller share, but they are easy marks if you learn the vocabulary.

How KCNA differs from the hands-on Kubernetes exams

The Linux Foundation also runs Kubernetes exams that are performance-based, where you work in a live cluster. KCNA is a different kind of test: it checks that you understand the ideas, such as what a Deployment is for or why a Pod might not become ready, without asking you to fix a broken cluster against the clock. Treat it as the concept layer. If you later want to prove hands-on skill, those exams are the next step, and the understanding you build for KCNA carries straight over.

Who KCNA is for

• Beginners who want to understand Kubernetes before touching it.
• Developers who deploy to Kubernetes but have never studied how it works.
• Learners heading toward DevOps or platform roles, as a step before AZ-400.
• AI engineers who need to deploy and scale what they build.

The benefits

• It explains the platform behind modern deployment, including how to reason about failures.
• It is vendor neutral. Kubernetes runs on every major cloud and on your own machines.
• It sets up the hands-on exams. The concepts carry straight into operating a cluster.
• It has a clear, weighted syllabus that makes study efficient.

Is there demand for the skill?

The Linux Foundation's 2022 Open Source Jobs Report found that 69% of employers were seeking hires with cloud and container skills, and that 93% reported difficulty finding sufficient talent with open source skills. That is a 2022 snapshot of the general market, and it does not measure demand for KCNA itself.

We have not found reliable evidence that employers require KCNA by name. Its value is that it gives you a structured route into an important skill area and a recognised way to show you followed it.

How Code Nexus prepares you for KCNA

Code Nexus first teaches Docker as a skills strand, in Episode 49, It Works on My Laptop, Episode 50, Where Did the Data Go? and Episode 51, The Secret in the Image. This is not a separate certification, but the exam assumes container knowledge. Five episodes then cover KCNA itself.

• Episode 52, We Went Viral covers what a cluster is made of and how workloads scale.
• Episode 53, Three Pods Are Not Ready covers workload health, probes and readiness.
• Episode 54, Service, Meet Network covers Services, networking and storage.
• Episode 55, Deploy Without the Dramatic Music covers declarative delivery and rolling updates.
• Episode 56, The Platform Readiness Review brings Docker and Kubernetes together and is the readiness check.

You practise in a simulated cluster environment in your browser that teaches the workflow and names the real objects and tools. It is not a live cluster, so pair it with a free local Kubernetes setup to see the real thing. See the episodes in the curriculum.

Code Nexus prepares you for the exam. The Linux Foundation delivers it and issues the certification.

A study plan

1. Learn containers first. If images and registries are new, start with the Docker episodes.
2. Draw the cluster from memory: control plane, nodes, Pods, Services.
3. Study by weight. Spend almost half your time on Kubernetes fundamentals.
4. Run a local cluster and break things on purpose, then read the events to see why.
5. Learn the ecosystem vocabulary for the smaller domains: observability, standards, CNCF project stages.
6. Do timed practice for 90 minutes.

What to do next

KCNA leads directly into AZ-400, which covers the pipelines and processes that deliver software onto platforms like this. It follows the AI exams on the certification roadmap, starting with AI-103. The reasoning behind hands-on study is in why practice beats passive study.

Ready to start? Create a free account and open the first container episode.

Code Nexus is not affiliated with The Linux Foundation and CNCF. Kubernetes and Cloud Native Associate and its badge are trademarks of The Linux Foundation. Code Nexus prepares you for the exam; The Linux Foundation and CNCF issues the certification.