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Red Hat EX188 Guide: Red Hat Certified Specialist in Containers

Red Hat EX188 exam guide covering containers, images, registries, pods, and OpenShift basics.

This Red Hat Certified Specialist in Containers guide helps EX188 candidates focus on what the exam tests, where close answers usually split, and which review page to use next.

This route includes performance-based skill expectations. Use the guide for concept readiness and objective triage, but plan hands-on practice in the real toolchain before scheduling.

At a glance

Item Guide value
Vendor Red Hat
Exam or credential Red Hat Certified Specialist in Containers
Code or shorthand EX188
Study level Performance-based containers
IT Mastery page EX188 exam page
Guide shape Start-here page, study plan, cheat sheet, FAQ, resources, and glossary.

Scope map

Lane What to master Common weak answer
OpenShift architecture Understand projects, routes, deployments, image streams, builds, operators, and cluster services. Treating OpenShift exactly like upstream Kubernetes without platform-specific objects.
Workload management Create, configure, scale, expose, update, and troubleshoot applications. Editing resources without verifying route, service, selector, image, and rollout behavior.
Security and access Use projects, RBAC, SCCs, service accounts, secrets, and image controls. Granting broad cluster access or privileged containers to bypass a problem.
Operations and troubleshooting Use oc commands, events, logs, probes, quotas, builds, and deployment status. Ignoring build logs or events when an app fails to roll out.
Automation and integration Use templates, operators, pipelines, GitOps or automation patterns where the exam requires them. Manual one-off changes when repeatable automation is the point.

How to use this guide

  1. Start with the study plan if you need a short path through the exam scope.
  2. Use the cheat sheet before a mixed practice set and again when you want a fast command-line review.
  3. Check the FAQ when you are deciding whether this exam is the right IT Mastery lane.
  4. Use the resources page for official references and current exam details.
  5. Use the glossary when two services, controls, roles, or terms feel interchangeable.

Exam decision habit

Red Hat OpenShift pages are readiness aids, not full simulations. Practice every objective in the live product or lab.

Source status

Use the current Red Hat exam page for live exam details, including name, status, pricing, duration, delivery method, languages, retirement or beta changes, and domain weights where applicable.

In this section

Revised on Sunday, May 10, 2026