Die RedHat EX380 Zertifizierungsprüfung ist sehr schwierig. Obwohl die RedHat EX380 Prüfung sehr schwer ist, gibt es noch viele Prüfungsanmelder. Warum? Weil RedHat EX380 Prüfung eine sehr wichtige Prüfung. Für ITer gibt es negativen Einfluss für die Arbeit. Diese Zertifizierung können Ihnen viele Vorteile bringen. Und es kann auch Ihnen erhöhte Chance schaffen. Zusammenfassend nehmen RedHat EX380 Prüfung großen Einfluss auf Ihre Karriere. Wollen Sie diese so wichtige Prüfung ablegen?
| Section | Objectives |
|---|---|
| Topic 1: Troubleshooting and Operational Tasks | - Cluster and application troubleshooting - Diagnosing automation failures |
| Topic 2: Application Deployment and Lifecycle Automation | - CI/CD workflows in OpenShift - Automated application deployment strategies |
| Topic 3: OpenShift Automation Fundamentals | - OpenShift architecture and core components - Cluster operations and configuration basics |
| Topic 4: Red Hat Ansible Automation Platform Integration | - Playbooks and role-based automation design - Ansible automation for OpenShift resources |
| Topic 5: Integration and Event-Driven Automation | - Event-driven automation patterns - Integration between OpenShift and external systems |
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32. Frage
Dedicate nodes to a workload using labels and nodeSelector
Task Information : Label two nodes with workload=payments and schedule a deployment only onto those nodes.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Label the chosen worker nodes
* oc label node worker-1 workload=payments
* oc label node worker-2 workload=payments
* Node labels are key/value metadata used by the scheduler.
* Add a nodeSelector to the deployment
* oc -n payments patch deploy api --type=merge -p '{
* "spec":{"template":{"spec":{"nodeSelector":{"workload":"payments"}}}}
* }'
* Forces pods to schedule only to nodes that match the label.
* Verify placement
* oc -n payments get pods -o wide
* Confirms pods are running on the intended nodes.
33. Frage
Configure project-wide default tolerations
Task Information : Configure the payments namespace so new pods automatically include a default toleration.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Annotate the namespace with default tolerations
* oc annotate ns payments \
* scheduler.alpha.kubernetes.io/defaultTolerations='[{"key":"dedicated","operator":"Equal","value":" payments","effect":"NoSchedule"}]' \
* --overwrite
* Some clusters honor this pattern; if not, the fallback is mutating admission or editing workloads.
* Create a new pod/deployment in the namespace
* Then verify its spec includes tolerations:
* oc -n payments get pod < pod > -o yaml | grep -n tolerations -A5
34. 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.
35. Frage
Install OADP Operator and verify Velero components
Task Information : Install the OADP operator and confirm Velero pods/components are running.
Antwort:
Begründung:
See the solution below in Explanation:
Explanation:
* Install OADP via Web Console
* Operators # OperatorHub # search OADP / OpenShift API for Data Protection # Install
* Explanation: This operator manages Velero and backup integrations.
* Verify the operator CSV is installed
* oc get csv -A | grep -i -E "oadp|data protection|velero"
* Confirms installation succeeded.
* Verify pods in the OADP namespace (commonly openshift-adp)
* oc get pods -n openshift-adp
* You should see Velero/OADP-related pods in Running state.
36. 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.
37. Frage
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EX380 Vorbereitung: https://www.itzert.com/EX380_valid-braindumps.html