EX380 Online Praxisprüfung, EX380 Testing Engine

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RedHat EX380 Exam Syllabus Topics:

SectionWeightObjectives
Topic 1: Automation and Scripting25%- Automate OpenShift operations
  • 1. Work with OpenShift REST API and CLI tools
  • 2. Schedule tasks with CronJobs
  • 3. Develop Ansible playbooks for cluster management
  • 4. Create and use shell scripts for tasks
Topic 2: Backup, Restore and Integration20%- Data protection and integration tasks
  • 1. Use OpenShift API for Data Protection (OADP)
  • 2. Backup and restore applications and cluster resources
  • 3. Integrate with external systems and services
  • 4. Manage cluster configuration and compliance
Topic 3: Authentication and Identity Integration20%- Configure and manage OpenShift authentication
  • 1. Integrate with LDAP directory services
  • 2. Configure RBAC and custom roles
  • 3. Manage user and group synchronization
  • 4. Integrate with Red Hat SSO / Keycloak OIDC
Topic 4: Application Deployment and Management20%- Deploy and manage applications
  • 1. Work with image streams and registries
  • 2. Use Kustomize for configuration management
  • 3. Manage Kubernetes resources on OpenShift
  • 4. Import/export applications and container images
Topic 5: Operators and Extensions15%- Work with OpenShift Operators
  • 1. Troubleshoot Operator deployments
  • 2. Install, subscribe, update and remove Operators
  • 3. Use custom resources and controllers

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RedHat Red Hat Certified Specialist in OpenShift Automation and Integration EX380 Prüfungsfragen mit Lösungen (Q35-Q40):

35. Frage
Configure BackupStorageLocation and VolumeSnapshotLocation
Task Information : Configure OADP/Velero storage locations and confirm they show as Available.

Antwort:

Begründung:
See the solution below in Explanation:
Explanation:
* Create a secret for cloud credentials (S3-compatible example)
* oc -n openshift-adp create secret generic cloud-credentials \
* --from-file=cloud=/path/to/credentials
* Velero uses this secret to authenticate to object storage.
* Create/Update the DataProtectionApplication (DPA)
* Apply a DPA CR that defines:
* backupLocations (bucket, endpoint URL, region, etc.)
* snapshotLocations (if using snapshots)
* Verify BackupStorageLocation and SnapshotLocation
* velero backup-location get
* velero snapshot-location get
* Status should be Available, meaning storage config is valid.
==========


36. 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


37. 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.


38. Frage
Recover a NotReady worker node (basic remediation workflow)
Task Information : Diagnose a NotReady worker node and restore it to Ready state using standard OpenShift admin workflow.

Antwort:

Begründung:
See the solution below in Explanation:
Explanation:
* Identify failing node and status
* oc get nodes
* Confirms which node is NotReady.
* Inspect node conditions and events
* oc describe node < worker >
* Shows kubelet condition issues (network, disk pressure, runtime, etc.).
* Check MachineConfigPool state
* oc get mcp
* oc describe mcp worker
* If MCP is degraded, node may be stuck applying a config.
* Check node logs (kubelet)
* oc adm node-logs < worker > --path=kubelet.log
* Often reveals why node isn't reporting Ready.
* Remediate based on symptom
* Examples:
* If out of disk: free space, then verify kubelet recovers.
* If stuck MCO: investigate current/desired config and fix broken MachineConfig.
* If node cordoned/drained incorrectly: uncordon after remediation.
* oc adm uncordon < worker >
* Confirm node returns Ready
* oc get node < worker >


39. Frage
Schedule a recurring backup
Task Information : Create a daily backup schedule for namespace orders at 01:00.

Antwort:

Begründung:
See the solution below in Explanation:
Explanation:
* Create the schedule
* velero schedule create orders-daily \
* --schedule "0 1 * * *" \
* --include-namespaces orders \
* --snapshot-volumes
* Cron format: minute hour day month weekday.
* Verify schedule exists
* velero schedule get
* Confirm backups are created by the schedule
* velero backup get | grep orders-daily
* Scheduled backups usually have names derived from the schedule.


40. Frage
......

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