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>> EX380 Examinations Actual Questions <<
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NEW QUESTION # 12
Backup and Restore - Fix SCC for Restored Application
Answer:
Explanation:
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.
NEW QUESTION # 13
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.
Answer:
Explanation:
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.
NEW QUESTION # 14
Spread replicas using podAntiAffinity
Task Information : Configure payments/api to prefer scheduling pods on different nodes.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Patch deployment with preferred podAntiAffinity
* oc -n payments patch deploy api --type=merge -p '{
* "spec":{"template":{"spec":{"affinity":{
* "podAntiAffinity":{
* "preferredDuringSchedulingIgnoredDuringExecution":[{
* "weight":100,
* "podAffinityTerm":{
* "labelSelector":{"matchLabels":{"app":"api"}},
* "topologyKey":"kubernetes.io/hostname"
* }
* }]
* }
* }}}}
* }'
* Encourages spread across nodes to reduce single-node impact.
* Verify spread
* oc -n payments get pods -o wide
NEW QUESTION # 15
Create and apply a MachineConfig (set MOTD on workers)
Task Information : Create a MachineConfig that writes /etc/motd on worker nodes.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Create the MachineConfig YAML (example content encoded in base64)
* apiVersion: machineconfiguration.openshift.io/v1
* kind: MachineConfig
* metadata:
* name: 99-worker-motd
* labels:
* machineconfiguration.openshift.io/role: worker
* spec:
* config:
* ignition:
* version: 3.2.0
* storage:
* files:
* - path: /etc/motd
* mode: 0644
* contents:
* source: data:text/plain;charset=utf-8;base64,VGhpcyBpcyBhIHdvcmtlciBub2RlLg==
* MachineConfig uses Ignition format; file content is typically base64.
* Apply it
* oc apply -f 99-worker-motd.yaml
* Watch worker MachineConfigPool roll out
* oc get mcp worker
* MCP will show Updating then Updated.
* Validate on a worker node (if you have node access)
* Confirm /etc/motd contains the expected text.
NEW QUESTION # 16
Maintain group synchronization on a schedule (CronJob)
Task Information : Create a CronJob that runs LDAP group sync on a schedule using a service account that has the required permissions.
Answer:
Explanation:
See the solution below in Explanation:
Explanation:
* Create a namespace for the sync job
* oc new-project id-sync
* Keeps the automation components organized.
* Create a service account for the sync job
* oc -n id-sync create sa group-sync
* CronJob runs under this SA identity.
* Grant cluster permissions to manage groups
* oc adm policy add-cluster-role-to-user cluster-admin system:serviceaccount:id-sync:group-sync
* In real environments you should scope down, but lab Task SIMULATIONs often accept cluster- admin for speed.
* Create a ConfigMap for groupsync.yaml and Secret(s) for bind password/CA
* Mount them into the job container.
* Create CronJob to run group sync
* Command inside job:
* oc adm groups sync --sync-config=/config/groupsync.yaml --confirm
* The CronJob ensures periodic reconciliation with LDAP.
* Verify job runs
* oc -n id-sync get cronjob
* oc -n id-sync get jobs
* oc -n id-sync logs job/ < job-name >
NEW QUESTION # 17
......
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