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RedHat EX316 Exam Syllabus Topics:

SectionObjectives
High Availability and Maintenance- Monitoring and updates
  • 1. Health checks and monitoring
  • 2. Update OpenShift Virtualization components
- Node and workload management
  • 1. Affinity, anti-affinity, and tolerations
  • 2. Eviction strategies and fault tolerance
  • 3. Node maintenance and draining
Configure Storage for Virtual Machines- Persistent storage management
  • 1. Attach/detach disks and import images
  • 2. PV, PVC, and storage classes
  • 3. External storage integration
Provision and Manage Virtual Machines- Create, start, stop, and access virtual machines
  • 1. Manage via web console and CLI
  • 2. Control resource allocation and access permissions
Deploy and Understand OpenShift Virtualization- Deploy OpenShift Virtualization Operator
  • 1. Deploy via Operator Lifecycle Manager
  • 2. Understand component architecture and functionality
Use Templates and Advanced Management- Snapshots, cloning, and migration
  • 1. Migrate from other hypervisors
  • 2. Create, restore, and manage snapshots
  • 3. Clone virtual machines
- Virtual machine templates
  • 1. Modify and create custom templates
  • 2. Cloud-init configuration
Configure Networking for Virtual Machines- Kubernetes networking configuration
  • 1. Multus CNI and multihomed configuration
  • 2. Network policies and external access
  • 3. ClusterIP, NodePort, and LoadBalancer services

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Exam EX316 Questions Answers & EX316 Latest Exam Guide

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RedHat Red Hat Certified Specialist in OpenShift Virtualization Sample Questions (Q307-Q312):

NEW QUESTION # 307
How do you restore a VM from a snapshot while preserving the original VM?

Answer:

Explanation:
See the Explanation.
Explanation:
1. Define a restore object:
apiVersion: snapshot.kubevirt.io/v1alpha1
kind: VirtualMachineRestore
metadata:
name: restore-test-vm
namespace: default
spec:
target:
apiGroup: kubevirt.io
kind: VirtualMachine
name: test-vm-restored
virtualMachineSnapshotName: test-vm-snap
2. Apply: oc apply -f vm-restore.yaml
3. Wait for restore to complete.
4. Confirm restored VM exists and is not auto-started.
5. Start with: virtctl start test-vm-restored


NEW QUESTION # 308
How do you expose a VM's service only to a specific namespace?

Answer:

Explanation:
See the Explanation.
Explanation:
1. ClusterIP is accessible across namespaces by default.
2. Restrict access using NetworkPolicy.
3. Create policy allowing ingress only from pods in desired namespace.
4. Example: from: - namespaceSelector: matchLabels: name: frontend
5. Apply policy in the VM's namespace.


NEW QUESTION # 309
How do you disable a service from starting at boot (e.g., postfix)?

Answer:

Explanation:
See the Explanation.
Explanation:
1. Enter the VM shell.
2. Run:
sudo systemctl disable postfix
3. Confirm:
systemctl is-enabled postfix
4. Should return disabled.
5. Reboot to ensure it doesn't auto-start.


NEW QUESTION # 310
How do you create and attach a DataVolume to a VM from a URL image?

Answer:

Explanation:
See the Explanation.
Explanation:
1. Create a DataVolume YAML:
apiVersion: cdi.kubevirt.io/v1beta1
kind: DataVolume
metadata:
name: fedora-dv
spec:
source:
http:
url: "https://download.fedoraproject.org/path-to/fedora.img"
pvc:
accessModes:
- ReadWriteOnce
resources:
requests:
storage:
10Gi
2. Apply with: oc apply -f dv.yaml
3. Attach to VM under dataVolumeTemplates
4. Monitor progress: oc get dv fedora-dv -w
5. Start the VM once complete.


NEW QUESTION # 311
How do you configure a ClusterIP service to work with a VM load balancer setup?

Answer:

Explanation:
See the Explanation.
Explanation:
1. Create multiple VMs running same service (e.g., HTTP).
2. Label each VM: app: web-vm
3. Create a service:
selector:
app: web-vm
4. All endpoints will round-robin via ClusterIP.
5. Test with multiple requests: curl vm-service


NEW QUESTION # 312
......

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