OpenShift application development · sources checked October 6, 2026

Choose OpenShift application learning for the work behind EX288

Choose learning for building and deploying applications on OpenShift. DO188 can address container foundations; DO288 builds on that knowledge for cloud-native application work. Check the exact exam and course revision, permitted practice and feedback before paying.

Best fit
Developers who need to build, deploy and troubleshoot applications on OpenShift.
Consider instead
Start with container foundations if those are missing. Choose platform-administration learning when operating the cluster is your actual task.
Before paying
Your designated exam version, selected course outline, tuition, permitted practice, feedback and personal eligibility still need confirmation.
No-contact next step
Describe an application deployment task, then try the original configuration-and-image-update work case.

Confirm the EX288 exam and your preparation gap

The EX288 exam page and credential detail page currently name Red Hat Certified Advanced Developer in Cloud-native Applications. This guide preserves the existing Specialist in OpenShift Application Development URL. A rename effective date, successor or equivalence for your personal existing badge has not been verified.

The exam overview and delivery description list OpenShift 4.22 and say multiple versions are in use. Your designated LMS exam version remains unknown. Confirm it against the appointment and exact course revision before paying.

EX288 is a 240-minute hands-on practical exam involving tasks on a live environment, with product documentation supplied and no outside assistance. Task count, selected language and numeric passing threshold remain unverified. Applications and configurations must remain functional across the platform’s normal lifecycle. Public objective families cover:

  • Work with Red Hat OpenShift Container Platform
  • Deploy multi-container applications
  • Work with container images in OpenShift Container Platform
  • Troubleshoot application builds and deployment issues
  • Work with image streams
  • Work with configuration maps and secrets
  • Work with the source-to-image (S2I) framework
  • Work with build hooks and build triggers
  • Work with templates
  • Work with OpenShift Pipelines
  • Work with Operators accessible for users to run in their applications

No weights are published for these 11 families in the scoped page. They do not establish personal mastery or a readiness percentage. The exam detail describes total scores and usual reporting within three US business days; the generic program guide describes an area breakdown within five business days. Result timing and granularity conflict; confirm the applicable expectation rather than treating either description as an appointment promise.

DO180, DO188 and DO288 are recommended preparation, not a verified mandatory course-purchase ladder or employment-tenure gate. DO288 recommends DO188 or equivalent knowledge; RHCSA or higher is helpful for command-line work, not required for DO288. These preparation statements do not verify exam admission or readiness. The training policy separately requires candidates to be 18 to purchase and consume training and exams. Confirm personal identity, agreements, country, accommodations and remote-device compatibility.

Compare EX188 container foundations when image and runtime work is the gap. Compare EX280 platform administration when cluster operation is the requirement.

Choose foundations or advanced application learning

Red Hat OpenShift Development I: Introduction to Containers with Podman

Choose when: You need container foundations before application deployment work on OpenShift.

Useful evidence: DO188 describes building, managing and troubleshooting containers on RHEL10, Podman5 and OpenShift4.22. Its complete selected detailed outline was not recovered. Selected tuition, duration, delivery and permitted practice access are unknown.

Confirm first: Web-application architecture experience and Linux-terminal/OS-command/shell familiarity are recommended; selected course admission remains unverified. Confirm lab permissions, feedback, access expiry, accessibility, support and exact exam inclusions.

Read the official course description

Red Hat OpenShift Developer II: Building and Deploying Cloud-native Applications (DO288)

Choose when: You have DO188 or equivalent knowledge and need to build and deploy cloud-native applications on OpenShift.

Useful evidence: DO288 describes designing, building and deploying containerized applications on OpenShift4.22. A full selected detailed outline was not observed; do not infer coverage of every EX288 objective. Selected tuition, duration, delivery and permitted practice access are unknown.

Confirm first: DO188 or equivalent knowledge is recommended. RHCSA or higher is helpful, not required. Exact delivery duration, tuition and personal admission remain unverified. Confirm lab permissions, feedback, access expiry, accessibility, support and exact exam inclusions.

Read the official course description

DO288’s actual course page lists OpenShift 4.22. Its public description includes container image design, ways to build and deploy containers, multi-container applications, health checks and continuous-delivery pipelines. These are paraphrased course themes; a full selected detailed outline was not observed. Do not assume complete EX288 objective coverage, a particular number of lab hours or a course-plus-exam entitlement. DO188’s existing foundation record is reused here; its RHEL10/Podman5/OpenShift4.22 description does not establish the delivered revision of a selected offer.

Neither paid course nor its labs was operated for this review. Ask the selected seller for the exact revision and outline, learner-performed application tasks, feedback on your work, isolated environment permissions, lab-hour and access limits, delivery dates, support, and exam/retake terms. Subscription marketing and a course completion do not prove competence or a pass. You do not need to purchase both courses if you already have the recommended foundation knowledge.

Check your payable offer and applicable policies

The generic certification program guide publishes a USD500 standard exam list price, with region and shopping-cart caveats. This is not a selected EX288 invoice. DO188 and DO288 tuition, selected delivery duration and a personal bundle quote were not verified. Confirm currency, tax, discounts, included exam, required environment and practice-access costs separately. Unknown is not zero.

The Individual Exam policy makes purchases final and non-refundable, with one year from purchase to schedule and take the exam and no extension. A conditional same-exam retake must also fit the original one-year window; verify personal eligibility in the scheduler and applicable contract. Scheduling requires at least 24 hours’ notice; changes inside the 24-hour rescheduling limit forfeit the authorization. This is not a guaranteed personal free retake or refund. Country-of-residence and remote compatibility rules matter.

The policy announces a December 11, 2026 cutoff in the People’s Republic of China for affected online training and Individual Exam delivery. That regional notice is not a global EX288 retirement. Confirm whether your selected offering and place of use are affected.

The generic guide describes credentials as current for three years from earning, with renewal before expiry; expired credentials must be earned again. Your exact badge, eligible renewal route and cost remain unverified. Its RHCA credit route is not an EX288 credit requirement; general higher-level renewal wording does not prove that a chosen activity renews your badge.

Application development, troubleshooting, security fundamentals, cloud fundamentals and systems analysis are associated with this scope. Software-developer or cloud-engineer duties must actually involve OpenShift application work for that mapping to be useful. A credential does not establish an occupation, production authority, personal proficiency or earnings. Geographic occupational wages are different from credential salaries; no salary estimate is inferred here. Compare other Red Hat work decisions.

Try an original application deployment case

A fictional community tool library wants an invented reservation application on an isolated OpenShift environment. It has a web service and a database containing fabricated tool and reservation records. Write a deployment plan that explains image provenance and tags, a build path, configuration and secret references, service connections, persistence, and a health check. Identify the namespace and permissions needed, evidence to inspect before changing a build or deployment, and a reversible release path.

Changed condition: A new image builds successfully but the web service cannot reach the database after deployment. One configuration reference points to an old service name, and a build trigger starts another image update. Explain how you would separate configuration, service connection and image-update causes using logs, events and the deployment state. Propose a small reversible fix, a verification step and a rollback while preserving fabricated database records.

Review rubric: Check the build source, image stream and deployed image identity; trace configuration and secret references without exposing values; inspect services, application logs, events and persistence. State what the app user is authorized to change, how a trigger could alter the result, and the evidence required to confirm a fix. Distinguish a paper plan from personally executed practice. This original fictional work case is not an exam question, readiness score or measured business benefit.

Use fabricated data and explicit assumptions. This paper exercise needs no account or private information; execution requires a permitted isolated environment. It is an original fictional case, not an exam question, performed customer work, a readiness test or measured business outcome.

Prepare a private employer training brief

Record the application task and desired deployment runbook, existing container and command-line knowledge, whether EX288 is required, exact exam and course revision, practice and feedback needs, environment permissions, delivery constraints and separate payable items. Research and a private brief require no contact details.

Prepare a training brief Ask about EX288 learning

A short request permits Learnerside to reply. Provider sharing requires separate consent naming the recipient. It does not book training; the detailed planner is optional.