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| Certification Vendor: | Red Hat |
|---|---|
| Exam Name: | Red Hat Certified OpenShift Administrator Exam |
| Exam Number: | EX280 |
| Exam Format: | Performance-based, Hands-on lab tasks, Scenario-based |
| Certificate Validity Period: | 3 years |
| Exam Duration: | 180 minutes |
| Real Exam Qty: | 15-17 performance-based tasks |
| Exam Price: | $400 USD |
| Available Languages: | English, Simplified Chinese, Korean, Japanese |
| Related Certifications: | Red Hat Certified Architect (RHCA) Red Hat Certified System Administrator (RHCSA) |
| Passing Score: | 210 out of 300 |
| Recommended Training: | DO280 - OpenShift Administration II: Operating a Production Kubernetes Cluster DO180 - OpenShift Administration I: Containers & Kubernetes |
| 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 |
These Red Hat Certified Specialist in OpenShift Administration exam (EX280) exam questions are a one-time investment to clear the EX280 test in a short time. These EX280 exam questions eliminate the need for candidates to study extra or irrelevant content, allowing them to complete their RedHat test preparation quickly. By avoiding unnecessary information, you can save time and crack the Red Hat Certified Specialist in OpenShift Administration exam (EX280) certification exam in one go. Check out the features of the three formats.
The EX280 exam tests the knowledge and skills required to create, configure, and manage OpenShift clusters. Candidates must have a solid understanding of deploying and scaling applications, monitoring and troubleshooting the environment, and securing the OpenShift infrastructure. EX280 exam is performance-based, which means candidates must complete tasks on a live system, rather than answering multiple-choice questions. This approach tests real-world skills in a simulated environment, ensuring that certified professionals are well-prepared for the job market.
The Red Hat EX280 Certification Exam is a performance-based exam that requires candidates to complete real-world tasks in a simulated OpenShift environment. EX280 exam consists of a series of hands-on exercises that test the candidate's ability to perform common OpenShift Administration tasks. EX280 exam is timed and candidates must complete all tasks within the allotted time to pass the exam.
NEW QUESTION # 17
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 # 18
Scale an application automatically
Automatically scale the hydra application deployment configuration in the lerna project with the following requirements:
Minimum number of replicas: 6 Maximum number of replicas: 9
Target average CPU utilization: 60 percent Container CPU resource request: 25m Container CPU resource limit: 100m
Answer:
Explanation:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project lerna
$ oc get pods
$ oc get all | grep deployment
$ oc autoscale deployment.apps/hydra --max=9 --min=6 --cpu-percent=60
$ oc get hpa
$ oc set resources deployment.apps/hydra --limits=cpu=100m -- requests=cpu=25m
$ oc describe deployment.apps/hydra | grep Limits -A3
NEW QUESTION # 19
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 # 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
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 # 22
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