VMware 5V0-21.20 Online Practice Questions and Exam Preparation

VMware 5V0-21.20 Online Questions & Answers

• Question 41:

  An administrator would like to put a vSAN host in an existing vSAN Cluster in maintenance mode. vMotion is configured and DRS is set to Fully Automated and all other advanced settings are their defaults.

  The administrator uses this PowerCLI command:

  Set-VMHost -VMHost "esxi-host01.corp.local" -State "Maintenance"

  What is the default behavior?

  A. Virtual machines will be live migrated and all storage objects residing on this host will migrate to another host that is not in maintenance mode.
  B. Virtual machines will be live migrated to another host not in maintenance mode and storage objects will be migrated if it is required to be accessible.
  C. Virtual machines will be live migrated to another host not in maintenance mode and storage objects will not migrate regardless of policy and state.
  D. Virtual machines will not be live migrated to another host not in maintenance mode and storage objects will be migrated if it is required to be accessible.
  A. Virtual machines will be live migrated and all storage objects residing on this host will migrate to another host that is not in maintenance mode.

• Question 42:

  When designing a vSAN Cluster, which three should be considered when sizing a vSAN datastore? (Choose three.)

  A. Storage Policy or Policies to be used
  B. capacity device queue depth
  C. vSAN Slack Space
  D. cache disks with 10% of the Disk Group
  E. On-Disk Format overheard
  F. endurance level of capacity disk used
  A. Storage Policy or Policies to be used
  B. capacity device queue depth
  C. vSAN Slack Space

  ---

  Reference: https://core.vmware.com/resource/vmware-vsan-design-guide

• Question 43:

  An All-Flash vSAN cluster has 4 nodes with this disk group composition on each host:

  1 × 800 GB SAS SSD

  6 × 3.84 TB SATA SSD

  An administrator observes that in an All-Flash cluster, the Write Buffer Free Percentage is consistently low. As a result, there is increased latency experienced by the workloads.

  Which remediation steps will resolve this issue?

  A. Add a second disk group with a new cache device and distribute the capacity disks equally.
  B. Add a second cache device to the same disk group to increase the caching size.
  C. Modify advanced vSAN configuration parameters to utilize the complete 800 GB for caching.
  D. Replace the existing cache device with a larger cache device.
  C. Modify advanced vSAN configuration parameters to utilize the complete 800 GB for caching.

• Question 44:

  Which must be configured by a Kubernetes user allow for dynamic provisioning of container volumes in vSAN using storage policies?

  A. ReplicaSet
  B. Pod
  C. StorageClass
  D. ReplicationController
  C. StorageClass

  ---

  Reference: https://vmware.github.io/vsphere-storage-for-kubernetes/documentation/policy-based-mgmt.html

• Question 45:

  An administrator wants to orchestrate the update of the controller driver and firmware in a vSAN cluster.

  Which is a required step when using VMware vSphere Update Manager and vSAN Health Service to perform the updates?

  A. Upload an OEM provided vSphere ISO.
  B. Install a vendor tool for the controller.
  C. Manually create a vSAN system baseline.
  D. Ensure all controllers are in pass-through mode.
  C. Manually create a vSAN system baseline.

  ---

  Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.update_manager.doc/GUID-6906DCFA-F4A4-4A67-A86D-2F56AB0B3B38.html

• Question 46:

  Which two statements are true about enabling deduplication and compression on an All-Flash vSAN cluster with data? (Choose two.)

  A. On-disk format version 3.0 or later is required to support deduplication and compression.
  B. This can be enabled through storage policies and does not require any data migration.
  C. Deduplication and Compression cannot be enabled on an existing vSAN datastore with data.
  D. Move one host at a time to maintenance mode and enable deduplication and compression.
  E. This requires data evacuation and disk format upgrade of all the disk groups.
  A. On-disk format version 3.0 or later is required to support deduplication and compression.
  E. This requires data evacuation and disk format upgrade of all the disk groups.

  ---

  Reference: https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-BD30E413-F870-4C25-9507-123F59D0A4B8.html

• Question 47:

  A vSAN disk group contains one cache drive and four capacity drives. A drive that belongs to this disk group has failed. The entire disk group containing the failed drive is offline. What are two possible reasons the entire disk group is offline? (Choose two.)

  A. Deduplication and compression is enabled on the cluster.
  B. RAID-5/6 (Erase Coding) is one of the failure tolerance methods in use.
  C. The failed drive is configured as a cache drive for the disk group.
  D. Data-at-rest encryption is enabled for the disk group.
  E. Two capacity drives in the disk group are offline.
  C. The failed drive is configured as a cache drive for the disk group.
  E. Two capacity drives in the disk group are offline.

• Question 48:

  Which step can be avoided when replacing a capacity tier device on a controller with passthrough mode and support for hot-plug?

  A. Shut down the host.
  B. Add the new disk to the disk group.
  C. Remove the disk from the disk group.
  D. Replace the physical drive.
  D. Replace the physical drive.

  ---

  Reference: https://docs.vmware.com/en/VMware-vSphere/6.5/virtual-san-66-administration-guide.pdf (31)

• Question 49:

  A failed storage controller has two vSAN disk groups attached. The components contained on the drives in those disk groups are marked Degraded. vSAN reports that some objects do not comply with their assigned storage policy. How is the compliance issue resolved?

  A. Initiate a proactive rebalance to force component repairs.
  B. Degraded components are repaired after CLOM Repair Delay Timer expires.
  C. Rebuilding of the degraded components starts immediately.
  D. Storage policies must be reapplied to all affected objects.
  C. Rebuilding of the degraded components starts immediately.

• Question 50:

  Which storage policy can be assigned to virtual machines in a 5-node, all flash vSAN cluster, to provide the highest level of redundancy?

  A. 1 failure - RAID-5 (Erasure Coding)
  B. 2 failures - RAID-6 (Erasure Coding)
  C. 2 failures - RAID-1 (Mirroring)
  D. 3 failures - RAID-1 (Mirroring)
  B. 2 failures - RAID-6 (Erasure Coding)