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EX288 Cheat Sheet 2026: One-Page Review of Must-Know Facts

TL;DR
  • EX288 is a 4-hour, hands-on exam on a live Red Hat OpenShift environment, not a multiple-choice test.
  • The current exam page specifies OpenShift Container Platform 4.22; confirm the version on your own booking.
  • Red Hat lists 11 top-level objective headings but publishes no percentage weights.
  • Standard list price is USD 500, with one free second attempt on an initially purchased paid exam.

What EX288 Is and How the Exam Works

EX288 is the Red Hat Certified Advanced Developer in Cloud-native Applications exam, issued by Red Hat, Inc. Red Hat's May 11, 2026 framework update renamed the former Specialist in OpenShift Application Development credential to this current title. If you want the longer background on the name and what it certifies, see What Is EX288 Certification? and What Does EX288 Stand For?.

One point of confusion is worth clearing up early. Red Hat also describes a separate Engineer in Cloud-native Applications path that requires both EX188 and EX288. That combined credential is a different thing. This cheat sheet covers EX288 only.

ItemEX288 fact
IssuerRed Hat, Inc.
FormatPerformance-based tasks on a live Red Hat OpenShift environment
Duration4 hours (current EX288 exam page)
Question styleHands-on tasks; no multiple-choice question bank
Task countNot publicly specified
Scored vs. unscored breakdownNot publicly specified
Reference materialRelevant product documentation is supplied; outside assistance is prohibited
Validity3 years

Because the exam is performance-based, you are graded on the end state of what you build. A correct mental model is not enough; the application, build, route or pipeline has to actually work when assessed. For a candid view of the difficulty this creates, read How Hard Is the EX288 Exam?

Persistence matters: Configurations and services must persist through the normal platform lifecycle without intervention. A deployment that only works because of a one-off manual step, or a setting that vanishes after a pod restart, is a risk. Build the habit of checking that your work survives a rollout or restart before you move on.

Fees, Booking and Retake Mechanics

The Red Hat Certification program guide lists a standard certification-exam list price of USD 500. Regional pricing and the actual EX288 checkout may differ, and that figure was not independently confirmed at checkout, so treat it as a planning number and check the price when you book. No member versus non-member price differential is published in the reviewed issuer material. A fuller breakdown lives in EX288 Certification Cost 2026.

  • Retake policy: One free second attempt is available for an initially purchased paid exam under the current program policy.
  • Delivery: Red Hat administers its own proctored remote, individual testing-station and classroom examinations, subject to exact-exam booking availability. No Pearson VUE or PSI appointment is verified for this exam.
  • Remote requirements: Remote delivery needs compatible equipment and proctoring under the booked examination's technical rules. Read those rules before exam day, not during check-in.
  • Prerequisites: The current page recommends DO180, DO188 and DO288 and a review of the objectives. No mandatory degree, fixed experience or training hours, reference count, or EX188 prerequisite for sitting EX288 was verified. Recommended training is not a mandatory eligibility requirement.

For scheduling specifics see EX288 Exam Dates 2026, and for eligibility detail see EX288 Requirements 2026.

The OpenShift Version Trap

The current public exam page specifies OpenShift Container Platform 4.22. No separately dated blueprint year is published, and multiple versions can coexist. The linked version-specific objectives were not retrieved, so no one can honestly claim this scope covers every bookable version.

SourceVersion or duration statedHow to treat it
Red Hat EX288 exam pageOpenShift 4.22; 4 hoursAuthoritative for the exam
Red Hat DO288 course page4.22Preparation curriculum, not an exam blueprint
Red Hat DO289 (course with exam) pageStill states 4.18Course versions do not override the booked exam version
Public Udemy listing (updated August 2026)States 4.18 and 3 hoursConflicting third-party metadata; not exam authority
Third-party instructor course listingDescribes training-session hoursTraining duration is not exam duration

Key Takeaway

Confirm the exact OpenShift version on your own booking confirmation, then practice on that version. If a course, video or practice lab says 4.18 or "3 hours," do not let it reset your expectations. The 4-hour figure comes from the current Red Hat EX288 page.

The 11 Objective Headings at a Glance

Red Hat's page lists 11 top-level objective headings. These are objective headings, not percentage-weighted domains, and no official weights or "highest-weighted" objective are published. Anyone quoting a weight breakdown is guessing. The full walkthrough is in EX288 Exam Domains 2026: Complete Guide to All 11 Content Areas; here is the quick reference.

#Objective headingWhat it signals in practice
1Work with Red Hat OpenShift Container PlatformCLI and console fluency, projects, resources, day-to-day cluster interaction
2Deploy multi-container applicationsWiring components together so the whole application runs
3Work with container images in OpenShift Container PlatformSourcing, referencing and running images in the cluster
4Troubleshoot application builds and deployment issuesReading logs, events and status to find why something failed
5Work with image streamsTracking images through image stream objects
6Work with configuration maps and secretsExternalizing configuration and sensitive data from images
7Work with the source-to-image (S2I) frameworkBuilding application images directly from source
8Work with build hooks and build triggersAutomating and gating builds
9Work with templatesParameterized, repeatable application definitions
10Work with OpenShift PipelinesCI/CD pipelines running on the cluster
11Work with Operators accessible for users to run in their applicationsConsuming Operator-provided services from application projects

The "what it signals" column is interpretation to guide practice, not issuer-published detail. Do not infer extra sub-objectives from course outlines: the DO288 and DO289 pages describe preparation curriculum, not the exam blueprint.

Hands-On Skills to Have in Your Fingers

Since the exam is graded on working end states, the best use of cheat-sheet space is a checklist of tasks you should be able to perform without hunting. Each block below maps to the objective headings above.

Domains 1-3: Platform, Multi-Container Apps and Images

Be fast and accurate at the basics so they never eat your clock.

  • Create and switch projects, then confirm which project you are in before every change.
  • Deploy an application from an existing image and expose it so it is reachable.
  • Bring up an application made of more than one container and confirm the pieces can talk to each other.
  • Know how the cluster pulls and references container images, including from other registries.

Domains 4-5: Troubleshooting and Image Streams

Troubleshooting is its own objective heading, and it also underpins every other task.

  • Read pod status, events and logs to separate build failures from deployment failures.
  • Recognize common causes: wrong image reference, missing configuration, permission problems, unreachable dependencies.
  • Understand what an image stream tracks and how workloads and builds consume it.

Domains 6-8: Config, S2I, Hooks and Triggers

  • Create configuration maps and secrets, and inject them into a workload as environment variables or mounted files.
  • Run a source-to-image build from a Git repository and confirm the resulting image deploys.
  • Configure build triggers and build hooks, then prove they fire by causing the event that should start or gate a build.

Domains 9-11: Templates, Pipelines and Operators

  • Instantiate a template with parameters, and be comfortable reading a template to see what it will create.
  • Work with OpenShift Pipelines: understand how tasks and pipelines are defined, run, and inspected for results.
  • Consume Operator-provided capabilities from an application project, using the cluster's available Operators rather than installing your own cluster-wide components.
Use the supplied documentation deliberately: Relevant product documentation is available during the exam, but outside assistance is prohibited. Practice navigating the official documentation to find an exact field name or object structure quickly, rather than memorizing everything. Knowing where an answer lives is a real skill when time is limited.

Scoring, Results and What Is Not Published

Successful final configurations are assessed against objective criteria. A numeric passing threshold was not verified on the current exam page or program guide, and third-party "210/300" or "300/500" claims are not issuer-confirmed. Do not plan around a magic cut score; plan around getting each task fully working. More on this topic is in EX288 Passing Score 2026.

  • Results timing: The exam page says results are usually available within 3 US business days and reported as total scores. The general program guide says within 5 business days with objective-area feedback. This inconsistency in Red Hat's own material is unresolved, so allow for the longer window.
  • Feedback: Neither source provides individual exam-item feedback.
  • Pass rate: No aggregate pass rate is published. Guarantees and individual pass or fail anecdotes do not establish one. See EX288 Pass Rate 2026: What the Data Shows for how to read the claims you will encounter.

Sequencing Your Prep by Domain

One structure worth using, tied directly to how the objectives depend on each other: get the platform basics fluent first, then build upward, and reserve troubleshooting for constant use rather than a single week. Adjust the pacing to your own background; this is a template, not an official plan. For a deeper plan, see the EX288 Study Guide 2026 and the EX288 training overview.

Week 1

Platform and images (Domains 1, 3)

  • Daily CLI work until project, resource and image tasks are automatic.
  • Everything later depends on this speed.
Week 2

Multi-container apps, config maps and secrets (Domains 2, 6)

  • Deploy multi-component applications and externalize their configuration.
Week 3

Builds: image streams, S2I, hooks and triggers (Domains 5, 7, 8)

  • These objectives interlock, so practice them as one build workflow.
Week 4

Templates, Pipelines, Operators (Domains 9, 10, 11)

  • Automation-heavy topics that reward repetition on a real cluster.
Week 5

Timed full-environment practice (all domains, Domain 4 throughout)

  • Run complete practice sessions against the 4-hour limit, deliberately breaking and fixing deployments.

Add timed drills with our EX288 practice tests to check that you can finish under pressure, and revisit weak objective areas before booking.

Validity, Renewal and Where the Credential Fits

The credential is current for 3 years. Red Hat's explicitly updated May 2026 FAQ describes renewal by retaking the highest-level exam, adding a certification at the same level, or advancing to a higher level within its framework. The program guide also supports retaking the original exam. Retaking EX288 is the common verified route.

Conflicting renewal wording: The legacy renewal landing page still says Specialist credentials can only be renewed by retaking their respective exams, and it uses "non-current" rather than "expiration" language, while the newer guide uses expiration language. Prefer the dated May 2026 framework and FAQ, renew while your credential is current, and check your transcript rules. No EX288-specific CEU quota or CEU-only renewal route is published.

On the career side, EX288 targets people who build and ship applications on OpenShift: developers, DevOps-minded engineers and platform-adjacent roles. Concrete earnings figures are not published by the issuer and are not quoted here; for context on roles and value, see EX288 jobs, the EX288 salary guide and Is the EX288 Certification Worth It?

FAQ

Is EX288 multiple choice?

No. It consists of hands-on performance tasks on a live Red Hat OpenShift environment. The exact task count and scored versus unscored breakdown are not publicly specified.

How long is the EX288 exam?

The current EX288 exam page lists 4 hours. Some third-party listings state 3 hours, but those are conflicting preparation metadata, not issuer authority.

Which OpenShift version does EX288 use?

The current public exam page specifies OpenShift Container Platform 4.22. Multiple versions can coexist, so confirm the exact version on your booking, since course page versions do not override the booked exam version.

Do I need EX188 or specific courses before sitting EX288?

No EX188 prerequisite for sitting EX288 was verified. The current page recommends DO180, DO188 and DO288, but recommended training is not a mandatory eligibility requirement.

What is the passing score and pass rate?

Red Hat assesses final configurations against objective criteria, and a numeric passing threshold was not verified. No aggregate pass rate is published, so treat any specific figure you see online with caution.

Ready to pass your EX288 exam?

Put this into practice with free EX288 questions across every exam domain.