Authentic RedHat EX316 Exam Dumps PDF - 2026 Updated
Get Prepared for Your EX316 Exam With Actual 340 Questions
NEW QUESTION # 16
How do you validate the health probes configured on a running VM?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Run:
oc describe vmi <vm-name>
2. Check the Conditions: section for probe status.
3. Look for LivenessProbeFailed or Ready=True.
4. Use oc logs on virt-launcher pod for probe output.
5. Adjust probe parameters if failing unexpectedly.
NEW QUESTION # 17
How do you delete a virtual machine snapshot using CLI?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Run: oc delete vmsnapshot <snapshot-name>
2. Confirm associated volumesnapshots are also deleted.
3. If deletionPolicy: Retain, clean them manually:
oc delete volumesnapshot <name>
4. Use oc get volumesnapshotcontents to clean leftover contents.
NEW QUESTION # 18
How do you create a PersistentVolumeClaim (PVC) for a virtual machine root disk?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Define the PVC YAML:
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
name: vm-root-disk
spec:
accessModes:
- ReadWriteOnce
resources:
requests:
storage:
10Gi
storageClassName: standard
2. Apply with: oc apply -f pvc.yaml
3. Verify with: oc get pvc vm-root-disk
4. Use this PVC in your VM definition.
NEW QUESTION # 19
How do you monitor the status of an ongoing VM migration?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Run: oc get vmim to list migrations.
2. View detailed status:
oc describe vmim <migration-name>
3. Look for: Phase: Succeeded or Failed.
4. Track progress under status.conditions.
5. Use oc get vmi -o wide to confirm new node location.
NEW QUESTION # 20
How do you use an existing PVC as the root disk in a virtual machine?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Add to your VM spec:
volumes:
- name: rootdisk
persistentVolumeCla
im:
claimName: vm-root-disk
interfaces:
- name:
rootdisk
disk:
bus: virtio
2. Set volumeMount inside domain config.
3. Start the VM: virtctl start <vm>
4. Confirm disk is mounted inside the VM.
NEW QUESTION # 21
How do you verify a VM uses shared storage needed for live migration?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Check the disk volume
source: oc get vm <name> -o
yaml
2. Ensure persistentVolumeClaim or dataVolume is used.
3. Avoid containerDisk or local hostPath.
4. Validate that the PVC's storage class supports shared access.
5. Use oc describe pvc <name>.
NEW QUESTION # 22
How do you install the NMState Operator on your OpenShift cluster?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Go to Web Console Operators OperatorHub.
2. Search for NMState and click Install.
3. Choose the target namespace (e.g., openshift-nmstate).
4. Wait for CSV status to show Succeeded: oc get csv -n openshift-nmstate
5. Confirm Operator pods are running: oc get pods -n openshift-nmstate
NEW QUESTION # 23
How do you manually create a VolumeSnapshot of a VM disk PVC?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Find the PVC: oc get pvc
2. Create a VolumeSnapshot:
apiVersion: snapshot.storage.k8s.io/v1
kind: VolumeSnapshot
metadata:
name: mydisk-snapshot
spec:
volumeSnapshotClassName: csi-rbdplugin-
snapclass source:
persistentVolumeClaimName: test-vm-disk
3. Apply and verify with: oc get volumesnapshot
4. Used for out-of-band recovery.
NEW QUESTION # 24
How do you troubleshoot a VM not responding via NodePort?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Ensure the VM is running: virtctl start <vm>
2. Check service selector: oc get svc -o yaml
3. Confirm targetPort is open in the VM firewall.
4. Use oc get endpoints to confirm backing pod IPs.
5. Use oc logs on virt-launcher pod to debug issues.
NEW QUESTION # 25
How do you customize CPU and memory in a preconfigured template?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Use oc process with
parameters: -p MEMORY=4Gi
-p CPU=2
2. Or use the web console and edit Flavor settings.
3. Adjust limits under VM Details Resources.
4. Save and start VM.
5. Validate via oc describe vm <vm-name>.
NEW QUESTION # 26
How do you confirm that node maintenance did not impact running applications?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Check all VMs are
Running: oc get vmi -A
2. Review recent events:
oc get events -A --sort-by=.lastTimestamp
3. Validate apps inside VM (e.g., HTTP response, DB queries).
4. Ensure no user-visible downtime.
5. Use probes/logs if configured.
NEW QUESTION # 27
How do you enforce which nodes support external bridge networking?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Label specific nodes:
oc label node worker-0 external-bridge=true
2. Define nodeSelector in your VM:
spec:
template:
spec:
nodeSelector:
external-bridge: "true"
3. Apply and confirm pod is scheduled on that node.
4. Ensure br-ext exists on that node only.
5. Prevent scheduling to misconfigured nodes.
NEW QUESTION # 28
How do you ensure volume snapshots are taken for all VM disks?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Verify all volumes are backed by PVCs.
2. Check snapshot support:
oc get volumesnapshotclass
3. All volumes listed in vmsnapshotcontent should match VM disks.
4. If missing, update volume definitions.
5. Retry snapshot if needed.
NEW QUESTION # 29
How do you define a watchdog device in a VM?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Add the following under domain.devices:
devices:
watchdog:
name: watchdog0
i6300esb: {}
2. Use i6300esb for virtual watchdog emulation.
3. VM OS must have a watchdog daemon (e.g., wdctl) running.
4. Apply YAML and restart the VM.
5. Used for in-guest health monitoring.
NEW QUESTION # 30
How do you clone only specific disks from a multi-disk VM?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Identify target disk PVC.
2. Clone that PVC using a DataVolume.
3. In cloned VM YAML, define:
disks:
- name: cloned-
disk disk:
bus: virtio
volumes:
- name: cloned-
disk
dataVolume:
name: <cloned-dv>
4. Leave other disks unmounted or reconfigure.
5. Used for testing or forensic recovery.
NEW QUESTION # 31
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 # 32
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 # 33
How do you verify and update VM boot order after import?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Edit VM
YAML:
bootOrder: 1
2. Make sure correct disk has bootOrder set.
3. Remove bootOrder from non-bootable devices.
4. Reapply changes: oc apply -f vm.yaml
5. Restart VM and verify boot.
NEW QUESTION # 34
How do you pre-create a PVC with specific performance class (e.g., gold)?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Choose appropriate StorageClass (e.g., gold)
2. Create PVC:
storageClassName: gold
3. Apply PVC and confirm: oc get pvc -o wide
4. Use PVC in VM spec.
5. Gold tier may have faster I/O.
NEW QUESTION # 35
How do you resize a VM disk using PVC expansion?
Answer:
Explanation:
See the Explanation.
Explanation:
1. Ensure the storage class supports allowVolumeExpansion.
2. Run:
oc patch pvc vm-root-disk -p '{"spec": {"resources": {"requests": {"storage": "15Gi"}}}}'
3. Restart the VM.
4. Resize partition inside the OS using growpart or resize2fs.
5. Confirm disk size with df -h.
NEW QUESTION # 36
......
Accurate & Verified New EX316 Answers As Experienced in the Actual Test!: https://actualtorrent.pdfdumps.com/EX316-valid-exam.html