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 #41

Which type of resource does OpenShift use to monitor deployment configurations?

  • A . Pods
  • B . Deployments
  • C . ReplicaSets
  • D . Controllers

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Correct Answer: B
B

Explanation:

OpenShift monitors deployments, which manage the ReplicaSets responsible for maintaining the desired pod states and configurations.
Question #42

Which Kustomize field adds labels to all resources in a manifest?

  • A . commonLabels
  • B . labelTransformer
  • C . resourceLabels
  • D . metadata.labels

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Correct Answer: A
A

Explanation:

The commonLabels field in kustomization.yaml adds the specified labels to all resources, simplifying label management across deployments.
Question #43

Which command is used to scale a deployment in OpenShift?

  • A . oc scale deployment <name>
  • B . oc set replicas <name>
  • C . oc scale –replicas=<count> deployment/<name>
  • D . kubectl scale –replicas=<count>

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Correct Answer: C
C

Explanation:

The oc scale command scales a deployment by adjusting the number of replicas, ensuring high availability or resource optimization.
Question #44

Which command applies a Kustomize customization to a Kubernetes cluster?

  • A . kubectl kustomize apply
  • B . kubectl apply -k <directory>
  • C . kustomize deploy
  • D . kubectl set kustomize

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Correct Answer: B
B

Explanation:

The kubectl apply -k command applies Kustomize customizations, rendering the resources specified in the Kustomization file.
Question #45

What Git command initializes a new repository locally for deploying applications in OpenShift?

  • A . git init
  • B . git clone
  • C . git push origin
  • D . git pull

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Correct Answer: A
A

Explanation:

The git init command initializes a new Git repository locally, enabling version control and integration with OpenShift deployments.
Question #46

Which Helm subcommand retrieves information about a specific release?

  • A . helm show
  • B . helm status <release-name>
  • C . helm inspect <release-name>
  • D . helm get <release-name>

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Correct Answer: B
B

Explanation:

The helm status command retrieves information about a specific release, including its current state and associated resources.
Question #47

How can you monitor application logs using the web console in OpenShift?

  • A . Navigate to the Project Logs tab
  • B . Use the Logs tab within the specific pod details
  • C . Open the Monitoring dashboard
  • D . Use the Configurations section

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Correct Answer: B
B

Explanation:

The Logs tab in the pod details of the web console displays real-time logs, aiding in application troubleshooting and debugging.
Question #48

What is the default image pull policy in OpenShift if the image tag is latest?

  • A . Always
  • B . IfNotPresent
  • C . Never
  • D . OnDemand

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Correct Answer: A
A

Explanation:

The default pull policy for the latest tag is Always, ensuring the image is re-pulled to check for updates.
Question #49

How can you verify the status of a pod in OpenShift?

  • A . Use oc get pods
  • B . Use oc describe pod <name>
  • C . Use oc logs pod <name>
  • D . All of the above

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Correct Answer: D
D

Explanation:

Each command provides different insights into pod status: oc get pods shows overall status, oc describe pod provides details, and oc logs displays logs.
Question #50

What is a key benefit of Source-to-Image (S2I) builds in OpenShift?

  • A . They require no base image
  • B . They include application deployment logic
  • C . They allow binary-only uploads
  • D . They build applications without configuration

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Correct Answer: B
B

Explanation:

S2I builds package source code with a builder image, which includes logic for application deployment, making it developer-friendly.
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