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| Section | Objectives |
|---|---|
| Topic 1: Storage and Networking for Virtual Machines | - Configure VM networking and connectivity - Configure persistent storage for VMs |
| Topic 2: OpenShift Virtualization Installation and Configuration | - Deploy OpenShift Virtualization operators and components - Configure cluster prerequisites for virtualization workloads |
| Topic 3: Migration and Operations | - Manage VM snapshots and backups - Perform VM migration within OpenShift clusters |
| Topic 4: Troubleshooting and Maintenance | - Monitor virtualization workloads - Diagnose VM and cluster issues |
| Topic 5: Virtual Machine Lifecycle Management | - Create and manage virtual machines - Start, stop, and modify VM resources |
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NEW QUESTION # 236
How do you verify that KubeVirt components are installed after operator deployment?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Check pods: oc get pods -n openshift-cnv | grep virt
2. Verify deployments: oc get deployments -n openshift-cnv
3. Confirm API services: oc get apiservices | grep kubevirt.io
4. Run: oc get crds | grep kubevirt
5. Check the custom resource: oc get kubevirt -n openshift-cnv
NEW QUESTION # 237
How do you stop a running service (e.g., firewalld) inside the VM?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Enter the VM via virtctl console or SSH.
2. Run:
sudo systemctl stop firewalld
3. Verify:
systemctl is-active firewalld
4. Should return inactive or dead.
5. Confirms successful stop.
NEW QUESTION # 238
How do you validate that a restored VM matches its snapshot state?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Start the restored VM: virtctl start <restored-vm>
2. Access it via console or SSH.
3. Check file contents, installed packages, config files.
4. Compare to original pre-snapshot state (if logs available).
5. Ensures point-in-time accuracy.
NEW QUESTION # 239
How do you enforce that a VM always prefers a group of nodes?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Label your preferred nodes:
oc label node worker-1 vm-preferred=true
oc label node worker-2 vm-preferred=true
2. Add affinity to VM:
nodeAffinity:
preferredDuringSchedulingIgnoredDuringExecution:
- preference:
matchExpressions:
- key: vm-preferred
operato
r: In
values:
- "true"
weight: 1
3. VM will prefer labeled nodes but can run elsewhere if needed.
NEW QUESTION # 240
How do you create a NodePort service to expose a VM externally?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Label the VM:
oc label vm <vm-name> app=nodeport-vm
2. Create service:
apiVersion: v1
kind: Service
metadata:
name: nodeport-svc
spec:
type: NodePort
selector:
kubevirt.io/domain: <vm-name>
ports:
- port: 22
targetPort: 22
nodePort: 30222
3. Apply with oc apply -f nodeport.yaml
4. Connect externally: ssh user@<node-ip> -p 30222
5. Ensure node firewall allows the port.
NEW QUESTION # 241
......
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