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| Certification Vendor: | Red Hat |
|---|---|
| Exam Name: | Red Hat Certified OpenShift Administrator Exam |
| Exam Number: | EX280 |
| Related Certifications: | Red Hat Certified System Administrator (RHCSA) Red Hat Certified Architect (RHCA) |
| Exam Format: | Scenario-based, Hands-on lab tasks, Performance-based |
| Certificate Validity Period: | 3 years |
| Exam Price: | $400 USD |
| Available Languages: | Korean, Japanese, Simplified Chinese, English |
| Passing Score: | 210 out of 300 |
| Real Exam Qty: | 15-17 performance-based tasks |
| Exam Duration: | 180 minutes |
| Recommended Training: | DO180 - OpenShift Administration I: Containers & Kubernetes DO280 - OpenShift Administration II: Operating a Production Kubernetes Cluster |
| Exam Registration: | Red Hat Certification Central |
| Sample Questions: | RedHat EX280 Sample Questions |
| Exam Way: | Online proctored or onsite at authorized test centers |
| Pre Condition: | Recommended: RHCSA certification; completion of DO180 and DO280 courses or equivalent experience; basic Linux administration skills |
| Official Syllabus URL: | https://www.redhat.com/en/services/training/red-hat-certified-openshift-administrator-exam |
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To prepare for the Red Hat EX280 certification exam, candidates can enroll in training courses offered by Red Hat, which cover topics such as OpenShift architecture, installation, configuration, and management. Candidates can also practice their skills by working on OpenShift projects and collaborating with peers in the OpenShift community. Additionally, there are numerous resources available online, including practice exams, study guides, and forums, which can help candidates prepare for the exam.
OpenShift is a container application platform that has become increasingly popular in recent years. Many organizations are now using OpenShift to manage their containerized applications, and the demand for skilled OpenShift administrators is on the rise. The EX280 Certification Exam is an excellent way for IT professionals to demonstrate their knowledge and skills in OpenShift administration, making them more attractive to potential employers.
NEW QUESTION # 19
Managing Group
Task information Details:
Create the groups site-users and guest-users .
Add qwerty to guest-users .
Add harry and susan to site-users .
Grant edit to site-users on test .
Grant view to guest-users on demo .
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create the groups:
oc adm groups new site-users
oc adm groups new guest-users
* Add users to groups:
oc adm groups add-users guest-users qwerty
oc adm groups add-users site-users harry susan
* Grant edit role on test to site-users:
oc policy add-role-to-group edit site-users -n test
* Grant view role on demo to guest-users:
oc policy add-role-to-group view guest-users -n demo
* Verify:
oc get groups
oc describe group site-users
oc describe group guest-users
oc get rolebinding -n test
oc get rolebinding -n demo
This task measures practical administration of OpenShift groups and project-scoped RBAC assignments.
NEW QUESTION # 20
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 # 21
Install Helm Chart
Task information Details:
Add the Helm repository do280-repo and install the example-app release from the specified chart.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Add the repository:
helm
repo add do280-repo http://helm.ocp4.example.com/charts
* Refresh repositories:
helm repo update
* Install the chart:
helm install example-app do280-repo/etherpad
* Verify:
helm list
oc get all
Notes:
* The uploaded lab text appears to spell the chart name incorrectly as ehterpad.
* In practice, use the actual chart name published in the repo. If the lab repo truly contains the typo, follow the repo index result.
This task tests Helm repository management and application deployment.
NEW QUESTION # 22
Configure a secret
Configure a secret in the math project with the following requirements: The name of the secret is: magic The secret defines a key with name: decoder_ring The secret defines the key with value:
XpWy9KdcP3Tr9FFHGQgZgVRCKukQdrQsbcl0c2ZYhDk=
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project math
$ oc create secret generic magic --from-literal key=decoder_ring --from- literal value=XpWy9KdcP3Tr9FFHGQgZgVRCKukQdrQsbcl0c2ZYhDk=
$ oc get secret -n math
NEW QUESTION # 23
Autoscale of Pods
Task information Details:
Create an HPA for httpd with min=2 , max=9 , and CPU target 60% .
Set resource requests on the httpd deployment so autoscaling can function properly.
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Set resource requests on the deployment:
oc set resources deployment httpd --requests=cpu=50m,memory=100Mi
* Create the HPA:
oc autoscale deployment httpd --min=2 --max=9 --cpu-percent=60
* Verify:
oc get hpa
oc describe hpa httpd
oc get deployment httpd -o yaml
Why resource requests matter:
* HPA CPU utilization is calculated against requested CPU.
* Without requests, percentage-based autoscaling is incomplete or invalid.
This task focuses on autoscaling prerequisites and policy creation.
NEW QUESTION # 24
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