What Is EX288?

What EX288 Actually Is

EX288 is the exam code for the Red Hat Certified Advanced Developer in Cloud-native Applications credential, issued by Red Hat, Inc. It tests whether you can build, deploy, configure, and troubleshoot applications on Red Hat OpenShift Container Platform by actually doing the work. There is no bank of multiple-choice questions to memorize. You are handed tasks on a live cluster, and your final configurations are assessed against objective criteria.

That distinction shapes everything about preparation. A candidate who can recite what a build configuration is but has never debugged a failing build under time pressure will struggle. A candidate who has written image streams, config maps, and templates dozens of times from the command line and the web console will feel at home. If you want a broader orientation on the credential itself, the companion piece EX288 Certification covers the credential at a high level, and the EX288 practice test site lets you rehearse the skills in a structured way.

The Name, the Rename, and What It Is Not

Red Hat updated its certification skills framework effective May 11, 2026. As part of that update, the credential formerly known as the Red Hat Certified Specialist in OpenShift Application Development became the current Red Hat Certified Advanced Developer in Cloud-native Applications. If you see older job postings, forum threads, or course materials using the previous name or the phrase "OpenShift Application Developer," they are describing the same exam code in earlier branding.

It is also worth keeping two things separate:

• EX288 on its own earns the Advanced Developer in Cloud-native Applications credential.
• The Engineer in Cloud-native Applications path is a separate, combined credential that requires both EX188 and EX288. Passing EX288 alone does not award it, and EX188 is not verified as a prerequisite for simply sitting EX288.

Readers who arrived here by searching variations of the acronym will find parallel explainers in What Does EX288 Stand For? and EX288 Meaning. On this site, every one of those articles refers to the Red Hat exam described here.

Exam Format: Four Hours on a Live OpenShift Cluster

The current EX288 exam page lists a duration of 4 hours. The work is performance-based and happens on a live Red Hat OpenShift environment. Red Hat does not publicly specify the exact number of tasks or break down scored versus unscored items, so be skeptical of any site that claims a precise task count.

Several rules define the experience:

• Documentation is supplied. Relevant product documentation is made available during the exam, but outside assistance is prohibited. Learning where things live in that documentation is itself a skill worth practicing.
• Results are outcome-based. Configurations are checked against objective criteria, so a working end state is what counts, not an elegant process.
• Persistence is required. Your configurations and services must survive the normal platform lifecycle without manual intervention. An application that only works until a pod restarts, or only because you left a port-forward running, will not hold up.
• Remote delivery has technical rules. Remote proctored delivery requires compatible equipment and adherence to the booked examination's technical requirements.

On scoring, a numeric passing threshold was not verified in the current exam page or program guide. Figures like 210/300 or 300/500 that circulate online are third-party claims, not issuer-confirmed. For a fuller treatment of what is and is not known, see EX288 Passing Score 2026: Exactly What You Need to Pass, and for a realistic read on difficulty, How Hard Is the EX288 Exam?

The 11 Exam Objective Areas

The exam page presents 11 top-level objective headings. These are objective headings, not percentage-weighted domains. Red Hat publishes no official weights, so no one can legitimately tell you which objective carries the most points. The practical conclusion: treat all 11 as fair game and make sure none is a blind spot. A deeper walkthrough lives in EX288 Exam Domains 2026: Complete Guide to All 11 Content Areas; here is the overview with what each area demands in practice.

Version Confusion: 4.22, 4.18, and Why It Matters

The current public EX288 exam page specifies OpenShift Container Platform 4.22 (accessed October 14, 2026). The DO288 course page also states 4.22. However, the DO289 course-with-exam page still states 4.18, and a public Udemy listing updated in August 2026 still references 4.18 and a three-hour exam. Those are conflicting preparation signals, and none of them overrides the version attached to the exam you actually book.

Practical guidance:

1. Check the exam page and your booking confirmation for the exact version before you commit to a lab environment.
2. Remember that multiple versions can coexist, and the version-specific objectives linked from Red Hat were not retrieved for this article, so this overview does not claim to cover every bookable version.
3. Do not use a training-session length as exam timing. A vendor course described in hours is a class schedule, not the exam clock. The exam page says four hours.

Registration, Fees, and Retake Mechanics

Red Hat administers its own proctored examinations in remote, individual testing-station, and classroom formats, subject to availability for the specific exam you want. No Pearson VUE or PSI appointment was verified for EX288, so do not assume a third-party scheduling flow.

Note the results-reporting inconsistency. The exam page describes total scores reported within about three US business days, while the program guide mentions up to five business days and objective-area feedback. Neither source provides item-by-item feedback, so plan on learning your result, not a detailed post-mortem of individual tasks. For a full money breakdown, see EX288 Certification Cost 2026: Complete Pricing Breakdown, and for scheduling logistics, EX288 Exam Dates 2026: Testing Windows, Deadlines & Scheduling.

Prerequisites and Recommended Training

The current exam page recommends three Red Hat courses, DO180, DO188, and DO288, along with a careful review of the exam objectives. Crucially, that is a recommendation rather than an eligibility gate. No mandatory degree, fixed experience hours, reference count, or EX188 prerequisite for sitting EX288 was verified.

What this means in practice:

• You can book the exam without having completed the courses, but you take on the responsibility of acquiring equivalent hands-on skill.
• DO288 is the course most closely aligned to the OpenShift application-building skills the exam targets, but its curriculum is a preparation baseline, not the exam blueprint.
• The EX188 exam matters only if you are pursuing the combined Engineer in Cloud-native Applications credential.

For the full eligibility picture, read EX288 Requirements 2026: Eligibility, Prerequisites & How to Qualify. If you are weighing structured courses against self-directed lab work, EX288 Training discusses the options.

Who Benefits From It and Where It Fits

This is a developer-focused credential, so its natural audience is people who build and ship containerized applications on OpenShift: application developers, DevOps and platform-adjacent engineers, and consultants who deploy workloads for clients running Red Hat's platform. Organizations that standardize on OpenShift, along with the integrators and service firms that support them, are where the skills are most directly applicable.

Because this article is limited to verified facts, it does not quote salary ranges or hiring statistics; none are available from the issuer material, and inventing them would be misleading. For discussion of the market side, see EX288 Jobs, EX288 Salary Guide 2026: Complete Earnings Analysis, and Is the EX288 Certification Worth It? Complete ROI Analysis 2026.

Validity and Renewal

The credential is current for 3 years. Renewal guidance has a wrinkle worth knowing about:

• The May 2026 FAQ describes renewing by retaking the highest-level exam, adding a certification at the same level, or advancing to a higher level within the framework.
• The program guide also supports retaking the original exam to renew that credential.
• A legacy renewal landing page still says Specialist credentials can only be renewed by retaking their respective exams, and it uses "non-current" language where the newer guide says "expiration."

The dated May 2026 framework and FAQ represent the updated policy, and retaking EX288 is the common verified route. Renew while your credential is still current, and check the applicable specialization and transcript rules. No EX288-specific CEU quota or CEU-only renewal route is published, so do not assume point-based renewal applies to this credential.

Sequencing Your Preparation by Objective

Since the exam is hands-on and unweighted, the most useful structure is to build skills in dependency order rather than by gut feel. This is the one place a schedule helps, because later objectives lean on earlier ones.

Troubleshooting sits last here but should be practiced throughout: every time something breaks in an earlier week, treat the fix as Domain 4 practice. Time yourself, because the four-hour clock is a real constraint. For a fuller plan, see EX288 Study Guide 2026: How to Pass on Your First Attempt, and keep EX288 Cheat Sheet 2026: One-Page Review of Must-Know Facts handy for last-minute review. For aggregate outcome data, EX288 Pass Rate 2026: What the Data Shows explains why no trustworthy pass-rate figure exists.

Frequently Asked Questions