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RedHat EX280 Exam Syllabus Topics:

Section	Weight	Objectives
Deploy and Manage Applications	25%	- Manage application lifecycles 1. Manage replica sets and scaling 2. Update and rollback deployments - Deploy applications from multiple sources 1. Use YAML manifests, templates and Helm charts 2. Use Kustomize and overlays
Manage OpenShift Container Platform	20%	- Manage and configure clusters via web console and CLI 1. Create and delete projects 2. Examine cluster status and resources 3. Monitor events, alerts and logs - Work with container images 1. Manage image streams and registries 2. Locate, identify and examine images
Work with Kubernetes Resources	25%	- Manage configuration data 1. Create and use ConfigMaps 2. Create and use Secrets - Query, filter and modify resource attributes 1. Use labels, selectors and annotations 2. Import/export and configure manifests
Configure Networking and Access	15%	- Troubleshoot software-defined networking - Expose services externally 1. Control ingress and network policies 2. Create and manage routes
Manage Authentication and Authorization	15%	- Manage users, groups and permissions 1. Create/delete users and modify passwords 2. Assign roles and adjust access rights - Configure identity providers 1. Set up HTPasswd and other providers

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RedHat Red Hat Certified Specialist in OpenShift Administration exam Sample Questions (Q16-Q21):

NEW QUESTION # 16
Scale Application Manually
Task information Details:
Scale the httpd deployment to 5 replicas .

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Scale the deployment:
oc scale deployment httpd --replicas=5
* Verify:
oc get deployment httpd
oc get pods -l app=httpd
* Confirm the desired, current, and available replica counts match.
This task checks direct workload scaling using the OpenShift CLI.

NEW QUESTION # 17
Deploy Application in the Project QED
Task information Details:
Set the service account for the specified deployment in project qed to project1-sa .

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Ensure you are in the correct project:
oc project qed
* Set the service account on the deployment:
oc set serviceaccount deployment/gitlab-skdjfklj project1-sa
* Verify:
oc get deployment gitlab-skdjfklj -o yaml | grep serviceAccount
oc describe deployment gitlab-skdjfklj
* If required, restart rollout:
oc rollout restart deployment/gitlab-skdjfklj
This task checks workload identity assignment through service accounts.

NEW QUESTION # 18
Create Secure Route in Quart Project
Task information Details:
Create an edge route named htquart for service httpd , using the specified hostname and TLS certificate/key files.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the quart project:
oc project quart
* Create the secure route:
oc create route edge htquart \
--service=httpd \
--hostname=quart.apps.ocp4.example.com \
--cert=./req.crt \
--key=./req.key
* Verify:
oc get route htquart
oc describe route htquart
* Test resolution and access if DNS is available:
curl -k https://quart.apps.ocp4.example.com
This task checks route exposure, TLS termination, and secure ingress administration.

NEW QUESTION # 19
Create Service Account in QED
Task information Details:
Switch to project qed .
Create service account project1-sa .
Grant the anyuid SCC to that service account.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the project:
oc project qed
* Create the service account:
oc create serviceaccount project1-sa -n qed
* Grant the SCC:
oc adm policy add-scc-to-user anyuid -z project1-sa -n qed
* Verify:
oc get sa project1-sa -n qed
oc adm policy who-can use scc anyuid
Why this matters:
* anyuid allows containers to run with arbitrary user IDs when an application requires it.
* This is a common administrative task in OpenShift for third-party container images.
This task validates service account creation and SCC assignment.

NEW QUESTION # 20
Collect Cluster Information
Task information Details:
Run must-gather and archive the gathered data into a tar file.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Run must-gather:
oc adm must-gather
* Confirm the directory created, usually something like:
ls
* Archive the directory:
tar -cvzf system10-4ktjl-l4kj5l-lk45j.tar.gz must-gather.local.*
* Verify:
ls -lh *.tar.gz
Notes:
* The lab text shows a tar command without source paths. A valid tar command must include the source directory or files.
* Use the actual must-gather output directory generated in your environment.
This task validates support-data collection and cluster diagnostics handling.

NEW QUESTION # 21
......

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