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freeCodeCamp.org
Kubernetes Course – Certified Kubernetes Administrator Exam Preparation (2026 Update)
A full Certified Kubernetes Administrator (CKA) prep course aligned with Kubernetes 1.34 and the 2026 exam environment. It walks the entire official curriculum in order, building a real multi node cluster with kubeadm and demonstrating every task hands on: cluster architecture, installation, upgrades, etcd backup and restore, RBAC, deployments and rolling updates, autoscaling, services and ingress, network policies, persistent storage, and systematic troubleshooting. Every concept comes with the kubectl commands and YAML manifests, mapped to the exam domain weights where troubleshooting is the heaviest. You could study for the CKA from this course alone.