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| Section | Weight | Objectives |
|---|---|---|
| Configure authentication and authorization | 15% | - Manage users and groups - Integrate with external identity providers - Configure RBAC (Role-Based Access Control) - Create and manage service accounts |
| Manage OpenShift Container Platform through CLI and Web UI | 15% | - Use oc and kubectl commands for cluster management - Navigate and operate through the web console - Install and configure OpenShift cluster using CLI tools |
| Deploy and manage applications | 20% | - Create and manage deployments - Implement multi-container pods - Configure application scaling and replication - Use ConfigMaps and Secrets |
| Implement CI/CD pipelines | 10% | - Configure OpenShift pipelines ( Tekton ) - Automate application deployments - Integrate with external CI/CD tools |
| Monitor and troubleshoot cluster | 15% | - Monitor cluster health and metrics - Troubleshoot common issues - Analyze logs and events |
| Manage storage for applications | 10% | - Create and use persistent volume claims - Configure persistent storage - Manage storage classes |
| Implement and manage networking | 15% | - Configure Ingress and Egress policies - Troubleshoot network connectivity issues - Manage network policies |
Die von ZertFragen gebotenen Prüfungsfragen enthalten wertvolle Prüfungserfahrungen und relevante Prüfungsmaterialien von IT-Experten uud auch die Prüfungsfragen und Antworten fürRedHat EX380 Zertifizierungsprüfung. Mit unserem guten Ruf in der IT-Branche geben wir Ihnen 100% Garantie. Sie können versuchsweise die Examensübungen-und antworten für die RedHat EX380 Zertifizierungsprüfung teilweise als Probe umsonst herunterladen. Dann können Sie ganz beruhigt unsere Schulungsunterlagen kaufen.
35. Frage
Kubeconfig Management - Set Context in Kubeconfig
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
Step 1: Verify the cluster name, namespace, and user name that should be referenced.
The lab uses cluster api-ocp4-example-com:6443, namespace audit-ns, and user audit-sa.
Step 2: Run the command:
oc config set-context audit --cluster api-ocp4-example-com:6443 --namespace audit-ns --user audit-sa -- kubeconfig audit.config Step 3: Confirm context creation.
The lab output shows:
Context "audit" created.
Detailed explanation:
A kubeconfig context ties together three things: a cluster endpoint, a user identity, and optionally a default namespace. This Task creates a context named audit in the file audit.config. Contexts are useful because they simplify repeated administration by letting the user switch between prepared working environments instead of re-entering cluster and namespace details each time. The namespace portion is especially helpful for project- scoped operations, because commands run under that context default to the chosen namespace. Accuracy matters here: if the user name in the context does not match the credentials entry or the cluster name does not exist in the kubeconfig, the context will not function as intended.
36. 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.
37. Frage
GitOps and MachineConfig - Push MachineConfig to Git
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
Step 1: Make sure the MachineConfig YAML has already been created or modified in the local Git repository.
This Task assumes the file change is ready to be committed.
Step 2: Run the command:
git commit -am "Add MachineConfig for motd" & & git push origin main
Step 3: Verify the commit succeeds and the push goes to the main branch.
The lab output shows:
[main 8d32a1] Add MachineConfig for motd
Detailed explanation:
This Task is part of a GitOps workflow. Instead of manually applying changes directly to the cluster, the desired configuration is stored in Git, and a GitOps controller such as Argo CD synchronizes the cluster to match the repository state. The command commits all tracked modified files with the message Add MachineConfig for motd and then pushes the change to the main branch. In this model, Git becomes the source of truth. A MachineConfig is typically used to manage node-level operating system configuration in OpenShift, so pushing it through GitOps ensures the change is auditable, repeatable, and reconciled declaratively. If the commit does not include the intended YAML, the synchronization mechanism will not apply the desired change.
38. 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.
39. Frage
Kubeconfig Management - Set Credentials in Kubeconfig
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
Step 1: Ensure the client certificate and private key files are available.
The lab uses audit.crt and tls.key.
Step 2: Run the command:
oc config set-credentials audit --client-certificate audit.crt --client-key tls.key --embed-certs --kubeconfig audit.config Step 3: Confirm the user entry is written.
The lab output shows:
User "audit" set.
Detailed explanation:
This command creates or updates the audit user entry inside the kubeconfig file audit.config. It points the user to a client certificate and private key, and the --embed-certs option stores certificate material directly inside the kubeconfig rather than only referencing external files. That makes the kubeconfig more portable because it can be moved and used without separately copying the certificate files, provided the embedded content is valid. In certificate-based authentication, the private key proves client possession while the certificate presents the approved identity. If the certificate and key do not match, authentication will fail. This step does not yet define what cluster or namespace the user works against; it only defines the credential identity.
40. Frage
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