What Is CKAD?

Overview

CKAD: Certified Kubernetes Application Developer is a CNCF credential. Design, build, and deploy cloud-native applications on Kubernetes for the CKAD exam. This PathKey™ guide summarizes the domains, format, cost signals, eligibility, and renewal pattern so you can decide before you book. Accumentum is an Army CA and Air Force COOL Approved Vendor. We teach preparation for the CNCF exam. CNCF sets exam content, fees, and policies.

Accumentum is an Army CA and Air Force COOL Approved Vendor. We teach preparation for the CNCF exam. CNCF sets exam content, fees, and policies.

Who it is for

• Programmers seeking to specialize in building and deploying cloud-native applications using Kubernetes to create scalable, modern solutions.
• Professionals with development experience aiming to enhance their skills in managing Kubernetes-based applications and workflows for CI/CD pipelines.
• Technical professionals designing containerized applications who want to deepen their expertise in Kubernetes resource configuration and optimization.

Exam domains

Weights follow the official outline.

1. 01

   Kubernetes Core Concepts for Developers

   Understand Kubernetes architecture, including pods, nodes, clusters, and the control plane, from an application development perspective, Explore key Kubernetes resources, such as deployments, services, and namespaces, for managing applications, and Use kubectl commands to interact with clusters, create resources, and inspect application states.

2. 02

   Pod Design and Configuration

   Define pod specifications, including containers, init containers, and environment variables, for application requirements, Configure multi-container pods with shared volumes and communication strategies for complex applications, and Implement pod lifecycle management, including restart policies and termination behaviors.

3. 03

   Application Deployment and Scaling

   Create and manage deployments to ensure application availability and rolling updates for zero-downtime releases, Configure replica sets to maintain desired pod counts and handle scaling requirements, and Implement horizontal pod autoscaling (HPA) based on CPU or custom metrics for dynamic scaling.

4. 04

   Service Discovery and Networking

   Configure Kubernetes services (ClusterIP, NodePort) to enable application communication within clusters, Use DNS for service discovery to allow pods to communicate reliably across namespaces, and Implement ConfigMaps and Secrets to inject configuration data and sensitive information into applications.

5. 05

   Storage for Applications

   Configure volumes (e.g., emptyDir, hostPath) to provide temporary or local storage for applications, Use PersistentVolumeClaims (PVCs) to attach persistent storage for stateful applications, and Understand storage classes and their role in dynamic provisioning for cloud-native environments.

6. 06

   Application Observability

   Implement liveness, readiness, and startup probes to monitor application health and ensure reliability, Configure logging to collect container logs and integrate with tools like Fluentd or Elasticsearch, and Use kubectl to access pod logs and debug application runtime issues in real-time.

7. 07

   Configuration and Secrets Management

   Manage application configuration using ConfigMaps to decouple settings from container images, Secure sensitive data with Secrets for credentials, API keys, or certificates in Kubernetes, and Inject configuration and secrets into pods via environment variables, volumes, or command-line arguments.

8. 08

   Application Security and Resource Limits

   Configure security contexts to restrict pod and container privileges, ensuring least privilege principles, Set resource requests and limits for CPU and memory to optimize application performance and cluster stability, and Use namespace quotas to enforce resource boundaries for multi-tenant environments.

9. 09

   CI/CD Integration with Kubernetes

   Understand CI/CD pipelines and their integration with Kubernetes for automated application deployments, Use tools like Helm to package and manage application manifests for streamlined deployments, and Implement rolling updates and canary deployments to minimize risks during application releases.

10. 10

    CKAD Exam Preparation

    Review the CKAD exam structure, including performance-based tasks, time constraints, and domain weightings, Practice hands-on labs simulating exam scenarios, such as rapid application deployment and troubleshooting, and Master kubectl commands and YAML authoring for efficient task completion under exam conditions.

Exam format and cost

Questions

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Duration

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Format

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Passing score

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Cost

Confirm the current exam fee on the vendor site before you register

Delivery

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Languages

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Experience and eligibility

Familiarity with Kubernetes fundamentals, such as pods, services, and deployments, to effectively engage with application development concepts. Proficiency in using container technologies like Docker, including building and managing container images, to support Kubernetes workflows.

Renewal

Renewal rules for CKAD: Certified Kubernetes Application Developer are set by CNCF. Many credentials use a multi-year cycle with continuing education, a renewal fee, or a newer exam. Confirm the current cycle on the vendor site.

Roles this credential fits

• Designing, building, and deploying cloud-native applications on Kubernetes: pods and deployments, configuration, multi-container patterns, observability, services and networking, and state persistence.
• Development
• Teams standardizing on this credential for hiring or compliance

Official sources

• CNCF certification

Always confirm fees, dates, and eligibility on the vendor site before you register. Vendors change outlines and prices without notice.