EX380 試験問題を無料オンラインアクセス

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.

See the solution below in Explanation:
Explanation:
Step 1: Identify the application namespace after restore.
The lab shows the namespace as my-app-namespace.
Step 2: Run the SCC assignment command:
oc adm policy add-scc-to-user anyuid -z default -n my-app-namespace
Step 3: Confirm the role binding is applied.
The lab output shows:
clusterrole.rbac.authorization.k8s.io/system:openshift:scc:anyuid added: "default" Detailed explanation:
After a restore, the application may fail if its pods require a security context not permitted by the default SCC allocation. This command grants the anyuid SCC to the default service account in the my-app-namespace project. The -z default syntax targets the default service account, which many restored workloads use if no custom service account is defined. The anyuid SCC allows containers to run with arbitrary user IDs, which some legacy or prebuilt images require. In OpenShift, SCC mismatches commonly cause pods to remain in pending or crash-related states. Assigning the proper SCC resolves those admission issues so workloads can start successfully. This step is therefore a post-restore operational fix to align security policy with application requirements.

See the solution below in Explanation:
Explanation:
Step 1: Ensure the target project exists.
The lab specifies the namespace/project auth-audit.
Step 2: Run the command:
oc create sa audit -n auth-audit
Step 3: Verify creation.
The lab output shows:
serviceaccount/audit created
Detailed explanation:
This creates a service account named audit in the auth-audit namespace. Service accounts provide non-human identities for workloads and automation processes running inside the cluster. They are also commonly used when controlled API access is needed for scripts, jobs, or external kubeconfig generation. Creating a dedicated service account instead of using the default one is good practice because it supports least privilege and clearer access tracking. In exam and administration scenarios, service accounts are often paired with explicit RBAC bindings to grant only the permissions needed for the intended Task SIMULATION . This step lays the identity foundation before assigning a role in the following Task SIMULATION .

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

See the solution below in Explanation:
Explanation:
* Export objects to YAML
* oc -n orders get deploy,svc,route,cm,secret -o yaml > orders-app.yaml
* Exports key application resources.
* Create target namespace
* oc new-project orders-copy
* Apply exported YAML
* oc -n orders-copy apply -f orders-app.yaml
* Recreates resources (some fields may need adjustment, like namespaces or immutable fields).
* Validate
* oc -n orders-copy get all