2026 Exam Guide
Certified Kubernetes Application Developer Study Guide
Current exam coverage, candidate guidance, important topics, and practical preparation advice for the CKAD exam.
What Is Certified Kubernetes Application Developer?
Certified Kubernetes Application Developer is a CNCF and Linux Foundation performance-based certification for developers who build, configure, expose, and troubleshoot applications on Kubernetes. CKAD focuses on application resources rather than full cluster administration.
Candidates should understand pods, deployments, jobs, CronJobs, ConfigMaps, Secrets, probes, resource requests, security contexts, services, ingress or Gateway API concepts, volumes, rollout controls, and debugging tools. In 2026, application developers working with containers and platform teams still benefit from this practical Kubernetes credential.
Who Should Take This Exam?
CKAD is for application developers, DevOps engineers, platform users, cloud-native developers, and engineers who deploy workloads to Kubernetes.
It is best for candidates who already know container basics and can work comfortably with YAML and kubectl.
Exam Domains
Application Design and Build
Guide areaPods, deployments, jobs, images, commands, arguments, and workload selection.
Configuration
Guide areaConfigMaps, Secrets, environment variables, volumes, and runtime settings.
Security and Networking
Guide areaSecurity contexts, service accounts, services, ingress, Gateway API, and network exposure.
Observability and Troubleshooting
Guide areaLogs, events, exec, probes, rollouts, resource use, and application debugging.
Common Topics Covered
- Pods
- Deployments
- Jobs
- CronJobs
- ConfigMaps
- Secrets
- Probes
- Services
- Ingress
- kubectl logs
Study Tips
Practice writing manifests quickly. Know common fields for deployments, services, jobs, probes, env vars, volumes, and security contexts.
Debug failed workloads using describe, logs, events, rollout status, and exec. CKAD rewards quick diagnosis more than memorized theory.
Practice Questions Overview
Certoga's CKAD starter bank reinforces Kubernetes application concepts. Pair it with real cluster practice because the official exam is hands-on and command-line based.