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RedHat EX280 certification exam is designed to test the skills and knowledge of professionals who work with OpenShift, the popular container application platform developed by Red Hat. EX280 exam is targeted towards individuals who are responsible for administering OpenShift environments in enterprise-level organizations. Passing this certification exam validates the candidate's expertise in implementing, configuring, and managing OpenShift clusters.

RedHat EX280 Exam is a performance-based exam that tests your ability to perform tasks related to OpenShift administration. You will be required to demonstrate your understanding of OpenShift architecture, installation, configuration, and management. You will be tested on your ability to create and manage projects, deploy and manage applications, create and manage users, and configure network policies.

>> EX280 Accurate Answers <<

2026 RedHat EX280: Red Hat Certified Specialist in OpenShift Administration exam Perfect Accurate Answers

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RedHat Red Hat Certified Specialist in OpenShift Administration exam Sample Questions (Q22-Q27):

NEW QUESTION # 22
Create LimitRanges for Project Darpa
Task information Details:
Switch to project darpa and create a LimitRange with Pod and Container minimums and maximums of CPU and memory, plus default container values.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the target project:
oc project darpa
* Create a YAML file, for example limitrange.yaml:
apiVersion: v1
kind: LimitRange
metadata:
name: darpa-limits
namespace: darpa
spec:
limits:
- type: Pod
max:
cpu: 300m
memory: 300Mi
min:
cpu: 5m
memory: 5Mi
- type: Container
max:
cpu: 300m
memory: 300Mi
min:
cpu: 5m
memory: 5Mi
default:
cpu: 100m
memory: 100Mi
* Apply it:
oc apply -f limitrange.yaml
* Verify:
oc get limitrange -n darpa
oc describe limitrange darpa-limits -n darpa
This task validates namespace-level defaulting and constraint policies for pod scheduling and resource consumption.


NEW QUESTION # 23
Create Resource Quota for Project Rocky
Task information Details:
Use project rocky and create a quota named rocky-quota with limits for CPU, memory, pods, services, replication controllers, and secrets.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Ensure the project exists and switch to it:
oc new-project rocky
oc project rocky
* Create the quota:
oc create quota rocky-quota
--hard=limits.cpu=2,limits.memory=1Gi,pods=3,services=6,replicationcontrollers=6,secrets=6
* Verify:
oc get resourcequota -n rocky
oc describe quota rocky-quota -n rocky
Notes:
* The lab text uses cpu=2,memory=1G and secret=6; in real OpenShift usage, the more reliable forms are limits.cpu, limits.memory, and secrets.
* If the exam specifically expects the exact resource names shown in the lab environment, use what the cluster accepts.
This task checks quota enforcement and namespace resource governance.


NEW QUESTION # 24
Create Network Policy
Task information Details:
Create a NetworkPolicy named mysql-db-conn that permits ingress to database pods only from pods matching the specified labels in namespaces labeled team=devsecops , on TCP port 3306 .

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Create a file named mysql-db-conn.yaml:
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: mysql-db-conn
spec:
podSelector:
matchLabels:
networking.k8s.io/v1/network: database
policyTypes:
- Ingress
ingress:
- from:
- namespaceSelector:
matchLabels:
team: devsecops
podSelector:
matchLabels:
deployment: my-web-mysql
ports:
- protocol: TCP
port: 3306
* Apply it:
oc apply -f mysql-db-conn.yaml
* Verify:
oc get networkpolicy
oc describe networkpolicy mysql-db-conn
This task tests namespace/pod label selection and application isolation using OpenShift networking policy controls.


NEW QUESTION # 25
Create a CronJob test-cron
Task information Details:
Create service account jupiter .
Grant anyuid SCC and cluster- admin to it.
Update CronJob cron-test to use that service account.

Answer:

Explanation:
See the solution below in Explanation.
Explanation:
Solution:
* Switch to the project hosting the cronjob, if needed:
oc project cron-test
* Create the service account:
oc create sa jupiter
* Grant anyuid:
oc adm policy add-scc-to-user anyuid -z jupiter -n cron-test
* Grant cluster-admin:
oc adm policy add-cluster-role-to-user cluster-admin system:serviceaccount:cron-test:jupiter
* Update the cronjob:
oc patch cronjob cron-test -p '{"spec":{"jobTemplate":{"spec":{"template":{"spec":{"serviceAccountName":" jupiter"}}}}}}'
* Verify:
oc get cronjob cron-test -o yaml | grep serviceAccountName
Notes:
* The uploaded lab uses oc set sa cronjob.batch/cron-test jupiter, which is not the usual command form for CronJobs. Patching the pod template is the reliable method.
This task checks service account and privilege adjustments for scheduled workloads.


NEW QUESTION # 26
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 .

Answer:

Explanation:
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.


NEW QUESTION # 27
......

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