What Does EX288 Stand For?

Decoding the Code: What the Letters and Numbers Mean

If you searched for "what does EX288 stand for," the honest answer is that it doesn't stand for anything in the way an acronym like "CPU" does. EX288 is an exam code assigned by Red Hat, Inc. The "EX" prefix identifies a Red Hat exam, as opposed to a training course, which carries a "DO" prefix. The number 288 is the identifier that pairs this exam with its companion course, DO288 (Red Hat OpenShift Developer II: Building and Deploying Cloud-native Applications).

That pairing is the most useful thing to understand about the code. Red Hat numbers its courses and exams so that a candidate can see the relationship at a glance: DO288 is the course, EX288 is the exam. If you want a broader look at the terminology, our other explainers cover what EX288 is and the meaning of the EX288 designation from slightly different angles. This article focuses on the practical question behind the search: what exactly is this credential, and what are you signing up for?

The Full Title: Red Hat Certified Advanced Developer in Cloud-native Applications

The credential that EX288 earns is Red Hat Certified Advanced Developer in Cloud-native Applications. Each part of that name tells you something:

• Red Hat Certified: the credential is issued and governed by Red Hat, which also administers its own proctored testing rather than outsourcing to a third-party delivery network.
• Advanced Developer: the exam targets people who already build and ship applications and now need to do so on OpenShift, not people learning containers for the first time.
• Cloud-native Applications: the subject matter is building, deploying, configuring and troubleshooting applications on Red Hat OpenShift Container Platform.

For a one-page summary of the credential, see our EX288 certification overview, and for the plain-language version of the same question, what EX288 certification is.

A Name That Changed: From Specialist to Advanced Developer

You may find older study material, forum threads or job postings that call this credential Red Hat Certified Specialist in OpenShift Application Development. That is not a different exam. Red Hat's May 11, 2026 framework update renamed the former Specialist credential to the current Advanced Developer in Cloud-native Applications title. The exam code, EX288, stayed the same.

This matters in practice for three reasons:

1. Search results are mixed. Older blog posts and course descriptions may use the Specialist name. They are describing the same exam code, but check the version details because the underlying OpenShift release may differ.
2. Your transcript wording. Credentials earned or renewed under the updated framework use the current naming, so make sure what you list publicly matches your Red Hat transcript.
3. Path language changed too. Red Hat's certification pages now describe a Cloud-native applications path in which a separate Engineer in Cloud-native Applications credential requires both EX188 and EX288. That combined credential is a different certification from the one this article covers.

What the Exam Actually Tests: The 11 Objective Areas

Knowing what the code stands for is only useful if you also know what the exam covers. The current public exam page lists 11 top-level objective headings. Red Hat does not publish percentage weights for them, so no area should be assumed to count more than another. Here they are, in the order Red Hat lists them:

These are the issuer's headings, reproduced as published; the bullet points above are orientation, not an official task list. For a deeper walkthrough of each area, read our complete guide to all 11 EX288 content areas.

Format, Timing and Booking Mechanics

The word "Advanced" in the title shows up most clearly in the format. EX288 is not a multiple-choice exam. You are given a live Red Hat OpenShift environment and a set of hands-on performance tasks, and you have 4 hours to complete them. Red Hat does not publicly specify the exact number of tasks or how they split between scored and unscored items, so be wary of any source claiming a precise count.

How scoring works

Red Hat assesses your final configurations against objective criteria: either the application works the way the task specified, or it does not. A numeric passing threshold was not verified in the current exam page or program guide. Figures like "210/300" or "300/500" that circulate on third-party sites are not issuer-confirmed. Our page on the EX288 passing score explains what is and isn't known.

Resources and rules

Relevant product documentation is supplied during the exam, and outside assistance is prohibited. Remote delivery requires compatible equipment and proctoring under the booked exam's technical rules. For fees in more depth, see the EX288 certification cost breakdown, and for scheduling, the guide to EX288 exam dates and booking.

Avoiding Acronym Confusion Around EX288

Because the code is just an identifier, other organizations have used the same string for unrelated credentials. Everything on this site refers only to the Red Hat exam described here. A few habits keep you safe:

• Always confirm the issuer. The authoritative source is Red Hat's own exam page, which lists the objectives and the OpenShift version.
• Ignore fee, date or score claims from pages that never mention Red Hat or OpenShift. They may be describing a different credential entirely.
• Check version statements. The current exam page specifies OpenShift Container Platform 4.22. Some third-party listings still show 4.18 and a three-hour duration; those are conflicting preparation metadata, not exam authority. Likewise, a training provider's course hours are not the exam's duration.
• Verify the exact version you book. Multiple exam versions can coexist, and course pages do not override the version attached to your booking. The DO288 course page says 4.22, while the DO289 course-with-exam page still says 4.18.

Where EX288 Fits in the Red Hat Path

EX288 sits in the application-development track of Red Hat's certification catalog. It is the exam recommended after the DO180, DO188 and DO288 courses, and Red Hat's own page recommends reviewing the exam objectives before you sit. These recommendations are not mandatory eligibility requirements: no degree, fixed training hours or EX188 prerequisite was verified for simply sitting EX288. Our EX288 requirements guide covers what is and is not required.

If you want the larger credential on the same path, the Engineer in Cloud-native Applications certification requires passing both EX188 and EX288. Passing EX288 alone earns you the Advanced Developer credential described in this article, not the Engineer credential.

Renewal

The credential is current for three years. Red Hat's updated May 2026 FAQ describes renewing by retaking the highest-level exam, adding a certification at the same level, or advancing to a higher level. The program guide also supports simply retaking the original exam, which makes retaking EX288 the common verified route. Older renewal pages use different wording (they refer to Specialist credentials and "non-current" rather than "expired"), so if you are close to your deadline, confirm the current rules against your transcript. No EX288-specific CEU-only renewal route is published.

Who Cares About This Credential

An exam built around OpenShift application development is most relevant where teams run containerized workloads on Red Hat OpenShift. In practice that means:

• Application and platform teams at organizations standardizing on OpenShift for internal workloads
• Consultancies and system integrators delivering OpenShift-based projects for clients
• DevOps and CI/CD engineers who build pipelines and image build workflows on the platform
• Developers moving from traditional deployment models to container-based delivery

The hands-on format is the real selling point: a passed performance exam shows that you can actually deploy, configure and fix applications on a live cluster, rather than recall terminology. We keep a separate look at EX288-related job roles, and our salary analysis and ROI discussion cover the career-value question without inventing numbers. Pass-rate questions come up constantly too; the short version is that Red Hat does not publish an aggregate figure, as we explain in what the data shows about the EX288 pass rate.

Sequencing Your Preparation by Domain

Since the exam is hands-on, preparation should be too: every objective is best learned by doing it at a terminal against a real cluster. Here is one way to sequence the 11 areas so that foundations come before the topics that depend on them. This is a suggested order, not an official one.

Troubleshooting is placed alongside the build topics because breaking and repairing builds is the fastest way to learn them. Finish with timed, full-length practice under realistic conditions. For the full plan, see our EX288 study guide, the one-page cheat sheet for last-minute review, and the overview of EX288 training options. When you want to check how ready you are, try our EX288 practice tests. If you are weighing your odds, how hard the EX288 exam is gives an honest look at the difficulty.

Frequently Asked Questions