Red Hat OpenShift Administration EX280 Practice Test
Build your confidence for Red Hat OpenShift Administration EX280. Practice the concepts, understand the answers, and strengthen your knowledge one question at a time.
Try a sample questionExam overview and details
The Red Hat Certified Specialist in OpenShift Administration (EX280) certification validates the skills required to deploy, manage, and troubleshoot containerized applications on the Red Hat OpenShift Container Platform. This performance-based exam assesses a candidate's ability to perform real-world tasks, including cluster installation, application lifecycle management, configuration of networking and storage, and implementation of security policies. Earning this certification demonstrates proven competency in operating a Kubernetes-based enterprise platform, a critical skill for organizations adopting cloud-native architectures. Certified professionals are recognized for their ability to maintain developer productivity and platform reliability, making them valuable assets in DevOps and platform engineering roles. The certification is a key milestone for administrators, SREs, and engineers seeking to validate their expertise with one of the industry's leading enterprise Kubernetes distributions.
Sample Questions
Choose an answer and explore the explanation to see how practice works.
An overlay patch should change only `spec.template.spec.containers[0].resources.requests.memory` for Deployment `api` while preserving every other field from the base. Which patch style is safest for this narrow change?
A LoadBalancer Service has an external IP, but no clients can connect. `oc get endpoints` shows no addresses. Where should the admin focus?
The OpenShift console shows an installed operator, but `oc get subscription -n app-ops` shows no Subscription. Which namespace should the admin check next?
A security review finds that user `maria` can delete pods in `payroll`, but she should only view resources. Which action best removes the excessive namespace permission while preserving read access?
A pod named `api-64c9d` has restarted six times. The current container is healthy, but the administrator needs the log from the failed container instance that exited immediately before this one started. Which command should they run?
Career Opportunities & Salary
Exam insights and study advice
In today's competitive technology landscape, validated expertise in enterprise Kubernetes platforms is a significant differentiator. The EX280 certification provides industry-recognized proof of your ability to manage production-grade OpenShift environments, directly impacting your career trajectory and earning potential. It signals to employers your commitment to professional development and mastery of a platform central to digital transformation, hybrid cloud, and modern application deployment strategies. This credential is often a prerequisite or highly preferred qualification for roles in platform engineering, site reliability engineering, and cloud infrastructure management.
Recommended
These are the backgrounds the certifying body suggests. Check the vendor's own page for anything it formally requires.
What this exam covers
01Configure application security
Topics
- Configure and manage service accounts
- Run privileged applications
- Manage and apply permissions using security context constraints
- Create and apply secrets to manage sensitive information
- Configure application access to Kubernetes APIs
- Deploy jobs to perform one-time tasks
- Configure Kubernetes cron jobs
Learning objectives
- Configure and manage service accounts
- Run privileged applications
- Manage and apply permissions using security context constraints
- Create and apply secrets to manage sensitive information
- Configure application access to Kubernetes APIs
- Deploy jobs to perform one-time tasks
- Configure Kubernetes cron jobs
02Configure network security
Topics
- Configure networking components
- Troubleshoot software defined networking
- Create and edit external routes
- Control cluster network ingress
- Secure external and internal traffic using TLS certificates
- Configure application network policies
- Expose non-HTTP/SNI Applications
- Configure a load balancer service
- Configure external application access
Learning objectives
- Configure networking components
- Troubleshoot software defined networking
- Create and edit external routes
- Control cluster network ingress
- Secure external and internal traffic using TLS certificates
- Configure application network policies
- Expose non-HTTP/SNI Applications
- Configure a load balancer service
- Configure external application access
03Deploy applications
Topics
- Deploy applications from templates and Helm charts
- Manage application deployments
- Work with replica sets
- Work with labels and selectors
- Configure services
- Expose applications to external access
Learning objectives
- Deploy applications from templates and Helm charts
- Manage application deployments
- Work with replica sets
- Work with labels and selectors
- Configure services
- Expose applications to external access
04Enable developer self-service
Topics
- Configure cluster resource quotas
- Configure project quotas
- Configure project resource requirements
- Configure project limit ranges
- Configure project templates
Learning objectives
- Configure cluster resource quotas
- Configure project quotas
- Configure project resource requirements
- Configure project limit ranges
- Configure project templates
05Manage authentication and authorization
Topics
- Configure the HTPasswd identity provider for authentication
- Create and delete users
- Modify user passwords
- Create and manage groups
- Modify user and group permissions
Learning objectives
- Configure the HTPasswd identity provider for authentication
- Create and delete users
- Modify user passwords
- Create and manage groups
- Modify user and group permissions
06Manage OpenShift Container Platform
Topics
- Use the web console to manage and configure an OpenShift cluster
- Use the command-line interface to manage and configure an OpenShift cluster
- Create and delete projects
- Locate and examine container images
- Identify images using tags and digests
- Query, format, and filter attributes of Kubernetes resources
- Import, export, and configure Kubernetes resources
- Examine resources and cluster status
- Monitor cluster events and alerts
- View logs
- Assess the health of an OpenShift cluster
- Troubleshoot common container, pod, and cluster events and alerts
- Use product documentation
- Be prepared to perform all tasks of a Red Hat Certified Technologist in OpenShift
Learning objectives
- Use the web console to manage and configure an OpenShift cluster
- Use the command-line interface to manage and configure an OpenShift cluster
- Create and delete projects
- Locate and examine container images
- Identify images using tags and digests
- Query, format, and filter attributes of Kubernetes resources
- Import, export, and configure Kubernetes resources
- Examine resources and cluster status
- Monitor cluster events and alerts
- View logs
- Assess the health of an OpenShift cluster
- Troubleshoot common container, pod, and cluster events and alerts
- Use product documentation
- Be prepared to perform all tasks of a Red Hat Certified Technologist in OpenShift
07Manage OpenShift operators
Topics
- Install an operator
- Uninstall an operator
- Delete an operator
Learning objectives
- Install an operator
- Uninstall an operator
- Delete an operator
08Work with resource manifests
Topics
- Deploy applications from YAML resource manifests
- Update application deployments
- Deploy applications using Kustomize
- Work with Kustomize overlays
- Create and use secrets
- Create and use configuration maps
Learning objectives
- Deploy applications from YAML resource manifests
- Update application deployments
- Deploy applications using Kustomize
- Work with Kustomize overlays
- Create and use secrets
- Create and use configuration maps