Certified Kubernetes Administrator (CKA)
The CKA is a hands-on, performance-based exam for Kubernetes administrators. It covers cluster architecture, installation and configuration (including kubeadm and etcd backup/restore), workloads and scheduling, storage, services and networking (including CNI, Ingress and Gateway API and CoreDNS), and — the largest domain — troubleshooting cluster and application failures.
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Start CKA examSkills measured
Cluster Architecture, Installation and Configuration
25%RBAC, kubeadm cluster creation and upgrades, etcd backup and restore, and Helm and Kustomize for installing components.
Workloads and Scheduling
15%Deployments and rolling updates, ConfigMaps and Secrets, resource requests and limits, and scheduling with taints, tolerations, affinity and node selectors.
Storage
10%Storage classes, persistent volumes and claims, access modes, reclaim policies, and dynamic provisioning.
Services and Networking
20%Pod and cluster networking, Services and endpoints, Ingress and Gateway API, NetworkPolicies, and CoreDNS.
Troubleshooting
30%Diagnosing cluster and node failures, control-plane and kubelet issues, and application, service and networking problems using logs and events.