Red Hat Certified OpenShift Application Developer exam (EX288) Training

The Red Hat Certified OpenShift Application Developer (EX288) exam is a performance-based certification that validates your ability to deploy and manage applications in a Red Hat® OpenShift® Container Platform environment.

By passing this exam, candidates:

• Earn the Red Hat Certified Specialist in OpenShift Application Development credential

• Gain credit toward RHCA® (Red Hat Certified Architect)

The exam is based on Red Hat OpenShift Container Platform 4.18.

Exam Objectives

The EX288 exam measures the ability to:

• Deploy applications in OpenShift

• Manage single and multi-container applications

• Implement CI/CD workflows

• Manage image builds and registries

• Handle configuration and secrets

• Troubleshoot application deployments

All deployments must meet the defined objective criteria.

Business Impact

EX288-certified professionals enable organizations to:

• Deploy secure and scalable applications on OpenShift

• Implement efficient CI/CD pipelines

• Optimize container image and registry management

• Accelerate DevOps operations

Individual Impact

Professionals who earn EX288 certification:

• Gain expertise in Kubernetes and OpenShift deployments

• Effectively use Helm, Kustomize, and Tekton

• Strengthen cloud-native development skills

• Progress toward RHCA

Candidates are recommended to:

• Have a basic understanding of container technologies

• Have programming experience (recommended)

• Complete DO288 (OpenShift Developer II)

• Hold the Red Hat Certified Specialist in Containers credential

These are strongly encouraged but not required.

Working with OpenShift

• Create and manage projects

• Deploy single and multi-container applications

• Use application health monitoring

• Work with Git in deployment workflows

Container Image Management

• Use pre-built images

• Configure image builds

• Implement custom builder workflows

• Publish images to the internal registry

• Manage image streams

Customizing Deployments

• Use Helm charts

• Customize deployments with Kustomize

• Deploy multi-container applications

Configuration and Secrets

• Create configuration maps

• Create secrets

• Inject configuration data into applications

Source-to-Image (S2I)

• Build and deploy applications using S2I

• Customize builder images

Hooks and Triggers

• Create build hooks

• Trigger application builds

• Validate hook execution

Templates

• Create OpenShift templates

• Use JSON/YAML templates

• Work with multi-container templates

• Add custom parameters

OpenShift Pipelines (Tekton)

• Understand CI/CD in OpenShift

• Use Tekton CRDs

• Design and troubleshoot pipelines

• Trigger pipeline workflows

Working with Operators

• Create applications from installed Operators

Troubleshooting

• Diagnose deployment issues

• Fix build problems

• Resolve minor configuration errors

Exam Format

• Performance-based, hands-on exam

• Duration: 3 hours

• Real-world application deployment tasks

• Single section

• Remote exam option available

Candidates are evaluated on whether deployed applications meet specific criteria.