2026 Exam Guide
Certified Kubernetes Administrator Study Guide
Current exam coverage, candidate guidance, important topics, and practical preparation advice for the CKA exam.
What Is Certified Kubernetes Administrator?
Certified Kubernetes Administrator is a hands-on Linux Foundation and CNCF certification for people who administer Kubernetes clusters. Unlike multiple-choice exams, CKA uses a performance-based environment where candidates solve tasks from the command line. The exam validates practical cluster administration, troubleshooting, storage, workloads, scheduling, networking, and cluster lifecycle skills.
In 2026, CKA remains one of the most respected cloud-native certifications because it measures operational ability. Candidates should be comfortable with kubectl, kubeadm concepts, RBAC, deployments, services, storage classes, persistent volumes, etcd backup, CoreDNS, ingress or Gateway API concepts, node troubleshooting, logs, events, and resource usage.
Who Should Take This Exam?
CKA is for Kubernetes administrators, platform engineers, DevOps engineers, SREs, cloud engineers, and infrastructure professionals who operate Kubernetes clusters.
Candidates should practice in real clusters. Reading alone is not enough because the exam is timed and task-based.
Exam Domains
Storage
10%Storage classes, persistent volumes, PVCs, access modes, and reclaim policies.
Troubleshooting
30%Clusters, nodes, components, logs, resource usage, services, and networking.
Workloads and Scheduling
15%Deployments, rollouts, scheduling controls, ConfigMaps, Secrets, and autoscaling.
Cluster Architecture and Networking
45%Cluster lifecycle, RBAC, operators, services, CoreDNS, Gateway API, and ingress.
Common Topics Covered
- kubectl
- kubeadm
- RBAC
- Deployments
- Services
- Gateway API
- CoreDNS
- Persistent volumes
- etcd backup
- Node troubleshooting
Study Tips
Practice under a timer. Build tasks that require creating, fixing, and verifying resources quickly from the command line.
Learn to use documentation efficiently, but do not depend on searching for every basic command. Memorize common kubectl patterns and troubleshoot from events and logs.
Practice Questions Overview
Certoga's CKA questions are multiple-choice practice aids for concepts and decisions, not a replacement for hands-on labs. Use them to identify gaps before doing timed cluster tasks.