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Your RedHat Red Hat Certified Specialist in OpenShift Administration certification goals are within reach thanks to Actual4Labs. Download 33 up-to-date EX280 questions right now and streamline your 2026 preparation process securely with our McAfee-protected checkout.
| Certification Vendor: | Red Hat |
|---|---|
| Exam Name: | Red Hat Certified OpenShift Administrator Exam |
| Exam Number: | EX280 |
| Related Certifications: | Red Hat Certified Architect (RHCA) Red Hat Certified System Administrator (RHCSA) |
| Available Languages: | Simplified Chinese, Korean, English, Japanese |
| Exam Duration: | 180 minutes |
| Real Exam Qty: | 15-17 performance-based tasks |
| Certificate Validity Period: | 3 years |
| Passing Score: | 210 out of 300 |
| Exam Format: | Scenario-based, Hands-on lab tasks, Performance-based |
| Exam Price: | $400 USD |
| 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: | DOWNLOAD DEMO |
| 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 |
| Section | Weight | Objectives |
|---|---|---|
| Deploy and Manage Applications | 25% | - Deploy applications from multiple sources
|
| Manage OpenShift Container Platform | 20% | - Manage and configure clusters via web console and CLI
|
| Manage Authentication and Authorization | 15% | - Configure identity providers
|
| Configure Networking and Access | 15% | - Troubleshoot software-defined networking - Expose services externally
|
| Work with Kubernetes Resources | 25% | - Query, filter and modify resource attributes
|
The EX280 exam is a core requirement for the Red Hat Certified Specialist in OpenShift Administration certification at the Specialist level. Earning this validates your skills for credentials like Red Hat Certified Architect (RHCA), Red Hat Certified System Administrator (RHCSA).
Candidates will face 15-17 performance-based tasks questions and have 180 minutes to complete the exam. This means you need strict time management. We strongly recommend taking timed practice tests to ensure you can maintain a steady pace without rushing when under actual exam time pressure.
The official examination fee is $400 USD, and you must achieve a score of 210 out of 300 to pass. Since retaking the test requires paying the full fee again, utilizing accurate practice materials for thorough self-assessment beforehand is crucial to protect your investment.
Candidate requirements include: Recommended: RHCSA certification; completion of DO180 and DO280 courses or equivalent experience; basic Linux administration skills. Please verify all eligibility details on the official certification page before scheduling your appointment.
Registration is handled through official testing partners. The exam is delivered via Online proctored or onsite at authorized test centers. You can sign up here:
The vendor suggests following official learning paths to build a foundational understanding:
Once you complete your training, use the 33 practice questions from Actual4Labs to refine your exam readiness.
Absolutely. A free PDF demo is available for you to evaluate the quality of our questions. Once purchased, you receive 365 days of free updates. If your access expires, you can renew it at a 50% discount to keep your materials current.
Your EX280 practice materials are delivered instantly. You can download them right away, and a copy will be sent to your email within one minute (contact support if not received in 2 hours). You can install the software on an unlimited number of computers. We also offer a 100% Money Back Guarantee: if you fail the corresponding exam within 60 days of purchase, you can claim a full refund. To apply, submit your enrollment slip and official Score Report PDF within 2 days after taking the test (processing takes up to 7 days). Note: failures within 3 days of purchase, downloaded but unattempted exams, free materials, and expired orders are excluded. The payer's name must match the candidate's name. Alternatively, you can exchange your order for two free exams of equal value and keep the original product's updates.
The syllabus is divided into 5 main domains. Key areas include "Manage OpenShift Container Platform" (20%), "Configure Networking and Access" (15%), "Work with Kubernetes Resources" (25%). For a comprehensive breakdown of all measured skills, please review the complete exam outline table provided above.
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.
Correct Answer:
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.
Configure quotas
Configure your OpenShift cluster to use quotas in the manhattan project with the following requirements:
The name of the ResourceQuota resource is: ex280-quota
The amount of memory consumed across all containers may not exceed 1Gi
The total amount of CPU usage consumed across all containers may not exceed
2 full cores
The maximum number of replication controllers does not exceed 3 The maximum number of pods does not exceed 3 The maximum number of services does not exceed 6
Correct Answer:
See the solution below in Explanation.
Explanation:
Solution:
$ oc project manhattan
$ oc create quota ex280-quota -- hard=memory=1Gi,cpu=2,pods=3,services=6,replicationcontrollers=3
$ oc get resourcequota
Create Secret with Name Magic in Math Project
Task information Details:
Create a secret named magic in the math project that stores MYSQL_ROOT_PASSWORD=redhat .
Correct Answer:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the math project:
oc project math
* Create the secret:
oc create secret generic magic --from-literal=MYSQL_ROOT_PASSWORD=redhat
* Verify:
oc get secret magic
oc describe secret magic
Note:
* The uploaded lab text contains a typo --from-listeral; the valid option is --from-literal.
* The output in the lab also appears inconsistent. The intended secret name is magic .
This task checks secret creation and secure configuration data handling.
Configure limits
Configure your OpenShift cluster to use limits in the bluebook project with the following requirements:
The name of the LimitRange resource is: ex280-limits
The amount of memory consumed by a single pod is between 5Mi and 300Mi The amount of memory consumed by a single container is between 5Mi and
300Mi with a default request value of 100Mi
The amount of CPU consumed by a single pod is between 10m and 500m
The amount of CPU consumed by a single container is between 10m and 500m with a default request value of
100m
Correct Answer:
See the solution below in Explanation.
Explanation:
Solution:
$ vim limit.yaml
# Edit the yaml file like below mentioned
apiVersion: "v1" kind: "LimitRange" metadata:
name: "resource-limits" spec:
limits:
- type: "Pod"
max:
cpu: "500m" memory: "300Mi"
min:
cpu: "10m" memory: "5Mi"
- type: "Container" max:
cpu: "500m" memory: "300Mi"
min:
cpu: "10m" memory: "5Mi"
defaultRequest: cpu: "100m" memory: "100Mi"
$ oc create -f limit.yaml --save-config -n bluebook
$ oc describe limitranges -n bluebook
Viewing page 1 out of 9 pages.
Viewing questions 1-4 out of 33 questions.
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