Free RedHat EX288 Practice Exams

RedHat EX288 Practice Exams

Last updated on Oct 22,2026
  • Exam Code: EX288
  • Exam Name: Red Hat Certified OpenShift Application Developer exam
  • Certification Provider: RedHat
  • Latest update: Oct 22,2026
Question #51

What type of build allows uploading pre-compiled binaries to create an image?

  • A . Binary Build
  • B . Source-to-Image Build
  • C . Docker Build
  • D . Custom Build

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Correct Answer: A
A

Explanation:

Binary builds allow developers to upload pre-compiled binaries or artifacts directly, creating a container image without compiling the source code.
Question #52

Which command is used to check application logs in OpenShift?

  • A . oc logs <pod-name>
  • B . oc describe <pod-name>
  • C . oc get logs <pod-name>
  • D . kubectl logs <pod-name>

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Correct Answer: A
A

Explanation:

The oc logs command retrieves logs from a specified pod, helping diagnose and troubleshoot application issues.
Question #53

What OpenShift feature allows controlling external traffic to applications?

  • A . Routes
  • B . Services
  • C . ReplicaSets
  • D . ConfigMaps

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Correct Answer: A
A

Explanation:

Routes expose services to external clients by creating URLs, providing controlled access to applications running in OpenShift.
Question #54

How do you ensure a BuildConfig outputs its image to a specific namespace’s image stream?

  • A . Specify the output.to field in the BuildConfig
  • B . Use the –namespace flag during build creation
  • C . Configure the deployment’s environment variables
  • D . Set the registry.url field in the BuildConfig

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Correct Answer: A
A

Explanation:

The output.to field in a BuildConfig specifies the target namespace and image stream for the built image, ensuring correct routing.
Question #55

What is the primary purpose of the OpenShift internal image registry?

  • A . To store public Docker images
  • B . To provide a private storage location for container images
  • C . To act as a caching proxy for external registries
  • D . To facilitate automated pod scaling

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Correct Answer: B
B

Explanation:

The internal image registry in OpenShift serves as a private storage for container images, ensuring secure access and integration with image streams.
Question #56

What command is used to deploy an application using a Helm chart?

  • A . helm install <release-name> <chart>
  • B . helm apply <chart>
  • C . helm deploy <release-name>
  • D . helm run <chart>

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Correct Answer: A
A

Explanation:

The helm install command deploys an application using a Helm chart, assigning it a release name for easy management.
Question #57

Which command in OpenShift tags an image for deployment?

  • A . oc tag <source>:<tag> <target>:<tag>
  • B . oc set tag <source> <target>
  • C . oc deploy image <tag>
  • D . kubectl tag <source>:<tag>

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Correct Answer: A
A

Explanation:

The oc tag command tags an image for deployment, enabling versioning and consistent image usage across environments.
Question #58

What is the purpose of the oc import-image command? (Choose two.)

  • A . To pull an image from an external registry
  • B . To tag an image for local builds
  • C . To create an image stream
  • D . To monitor image updates in an external repository

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Correct Answer: A, C
A, C

Explanation:

The oc import-image command pulls an image from an external registry and creates or updates the associated image stream in OpenShift.
Question #59

Which command deploys an application directly from source code in OpenShift?

  • A . oc new-build
  • B . oc new-app
  • C . oc create deploy
  • D . kubectl apply

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Correct Answer: B
B

Explanation:

The oc new-app command automates application deployment from source code or an image, creating the required resources like pods, services, and routes.
Question #60

What command lists all installed Helm releases?

  • A . helm list
  • B . helm get releases
  • C . helm show deployments
  • D . helm status

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Correct Answer: A
A

Explanation:

The helm list command displays all installed Helm releases, including their names, namespaces, and statuses.
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