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| Section | Weight | Objectives |
|---|---|---|
| Deploy and manage applications | 20% | - Create and manage deployments - Use ConfigMaps and Secrets - Implement multi-container pods - Configure application scaling and replication |
| Manage storage for applications | 10% | - Manage storage classes - Create and use persistent volume claims - Configure persistent storage |
| Manage OpenShift Container Platform through CLI and Web UI | 15% | - Navigate and operate through the web console - Install and configure OpenShift cluster using CLI tools - Use oc and kubectl commands for cluster management |
| Configure authentication and authorization | 15% | - Integrate with external identity providers - Configure RBAC (Role-Based Access Control) - Create and manage service accounts - Manage users and groups |
| Implement and manage networking | 15% | - Troubleshoot network connectivity issues - Configure Ingress and Egress policies - Manage network policies |
| Monitor and troubleshoot cluster | 15% | - Monitor cluster health and metrics - Analyze logs and events - Troubleshoot common issues |
| Implement CI/CD pipelines | 10% | - Configure OpenShift pipelines ( Tekton ) - Automate application deployments - Integrate with external CI/CD tools |
IT-Fachleute sind sehr beliebt. Aber die Konkurrenz ist zugleich auch sehr heftig. So beteiligen sich viele IT-Fachleute an der autoritären RedHat EX380 IT-Zertifizierungsprüfung, um Ihre Position zu konsolidieren. Und unser ExamFragen bietet speziell Bequemlichkeiten für den RedHat EX380 Kandidaten.
27. Frage
Configure RBAC roles with users and groups
Task Information : Grant edit to group dev-team in namespace payments, and grant view to user auditor1.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Create (or switch to) the project
* oc new-project payments
* Namespace must exist before applying rolebindings.
* Grant edit to the group
* oc -n payments policy add-role-to-group edit dev-team
* Members of dev-team can modify most resources in payments.
* Grant view to a user
* oc -n payments policy add-role-to-user view auditor1
* auditor1 can read resources but not change them.
* Verify rolebindings
* oc -n payments get rolebinding
28. Frage
Create a full application backup (resources + PV data)
Task Information : Create a Velero backup of namespace orders including PV snapshots.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Confirm resources and PVCs exist
* oc -n orders get all
* oc -n orders get pvc
* Ensures there is something meaningful to back up.
* Create backup including volume snapshots
* velero backup create orders-full --include-namespaces orders --snapshot-volumes
* Captures Kubernetes objects and requests PV snapshots where supported.
* Check status/details
* velero backup describe orders-full --details
* velero backup logs orders-full
* Review warnings/errors and confirm snapshot actions.
29. Frage
Kubeconfig Management - Approve CSR
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
Step 1: Identify the pending certificate signing request.
The lab names it audit-csr.
Step 2: Run the approval command:
oc adm certificate approve audit-csr
Step 3: Confirm approval.
The lab output shows:
certificatesigningrequest.certificates.k8s.io/audit-csr approved
Detailed explanation:
In Kubernetes and OpenShift, a CSR must be approved before the requester can use the signed certificate for authentication. This Task approves the CSR named audit-csr, which is likely associated with the audit user or service account access flow in the lab. Certificate-based authentication is commonly used for kubeconfig access because it enables secure client identity without relying solely on tokens. Until the CSR is approved, the certificate cannot be trusted by the cluster API for authenticated operations. Administrative approval is therefore a gatekeeping step that ensures only intended certificate requests become valid credentials. This Task is part of a broader kubeconfig workflow that continues with setting credentials and defining context.
30. Frage
Restore application into same namespace
Task Information : Restore from backup orders-full and validate the app resources return.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Start the restore
* velero restore create orders-restore --from-backup orders-full
* Monitor restore status
* velero restore get
* velero restore describe orders-restore --details
* Validate restored resources
* oc -n orders get all
* oc -n orders get pvc
* Ensure deployments/pods/services and PVCs exist and pods become Running.
31. Frage
Identity Management - Create CA ConfigMap
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
Step 1: Ensure the certificate file rhds_ca.crt is available in your current working directory or use the correct path.
The Task requires creating a configmap from this CA certificate file.
Step 2: Run the command:
oc create configmap rhds-ca-config-map --from-file ca.crt=rhds_ca.crt -n openshift-config Step 3: Confirm the configmap is created.
The lab output shows:
configmap/rhds-ca-config-map created
Detailed explanation:
This creates a configmap named rhds-ca-config-map in the openshift-config namespace and maps the local file rhds_ca.crt to the key name ca.crt inside the configmap. This is important in external identity integration because OpenShift may need to trust a custom certificate authority when communicating with LDAP or another secured external service. By placing the certificate in a configmap, the authentication operator or related cluster configuration can reference it cleanly. The key name matters because many OpenShift resources expect a CA bundle key with a specific filename-like convention. If the file path is wrong, the command fails immediately. If the configmap name or key mapping is wrong, the authentication provider referencing it may not trust the external endpoint.
32. Frage
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