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CNCF Kubestronaut Path

Kubestronaut is awarded to people who pass all five CNCF Kubernetes certifications. Official details: CNCF Kubestronaut program.

Step Exam Format Why this order
1 KCNA: Kubernetes and Cloud Native Associate Multiple choice Builds the vocabulary and the big picture
2 KCSA: Kubernetes and Cloud Native Security Associate Multiple choice Security concepts that make CKS easier
3 CKA: Certified Kubernetes Administrator Hands-on The core operations skill set
4 CKAD: Certified Kubernetes Application Developer Hands-on Speed with workloads and manifests
5 CKS: Certified Kubernetes Security Specialist Hands-on The hardest, and it requires a current CKA

How I'd prepare

  • Live in a cluster. Build one with kubeadm, break it, and fix it. The Troubleshooting section is a good drill list.
  • Get fast with kubectl. Imperative commands, --dry-run=client -o yaml, and kubectl explain save minutes.
  • Use the practice simulator that comes with exam registration, and review the candidate handbook for what is allowed.
  • Study concepts, not exam content. Sharing real exam questions breaks the candidate agreement.

After the five

Everything must stay current to keep the Kubestronaut title, so plan renewals. The next step is the Golden Kubestronaut.