5V0-21.21 Online Practice Questions and Answers

A company hosts a vSAN 7 stretched cluster for all development workloads. The original sizing of a maximum of 250 concurrent workloads in the vSAN cluster is no longer sufficient and needs to increase to at least 500 concurrent workloads within the next six months.

To meet this demand, the original 8-node (4-4-1) cluster has recently been expanded to 16 nodes (8-8-1).

Which three additional steps should the administrator take to support the current growth plans while minimizing the amount of resources required at the witness site? (Choose three.)

A. Add the new vSAN witness appliance to vCenter Server.

B. Deploy a new large vSAN witness appliance at the witness site.

C. Configure the vSAN stretched cluster to use the new vSAN witness.

D. Deploy a new extra large vSAN witness appliance at the witness site.

E. Upgrade the vSAN stretched cluster to vSAN 7.0 U1.

F. Configure the new vSAN witness as a shared witness appliance.

An architect is designing for a production vSAN cluster, and the customer introduced these requirements

related to File Services:

A minimum of 12 files shares.

30TB NFS capacity to mount workload VMs.

What should be the architect's recommendations?

A. Point out the risks regarding putting the hosts in maintenance mode in terms of FSVM.

B. Confirm on all of the requirements and move forward with the physical design.

C. Raise concerns regarding support when running VMs on an NFS share as risk.

D. Highlight the required number of nodes required for the vSAN cluster as a constraint.

An administrator has received an alert indicating that a single capacity device is close to failing within the production vSAN Cluster. The administrator must now complete preemptive maintenance on the vSAN Cluster without impacting the availability of workloads or vSAN File Services.

The following information is known about the vSAN Cluster: vSAN 7.x Cluster vSAN node count: 8 De-Duplication and Compression: Enabled. Encryption: Disabled Current Utilization: 45% Disk Groups: 2 Devices per node: 2 x 400 GB SSD, 6 x 1.8 TB SSD

Which three steps should the administrator take to successfully complete the task? (Choose three.)

A. Remove the affected Disk Group from the vSAN Cluster, and choose Full Data Migration.

B. Replace the failed disk with a storage device that is identical in class and capacity.

C. Remove the affected Disk Group from the vSAN Cluster, and choose No Data Migration.

D. Replace the failed disk with a storage device that is identical in class but smaller in capacity.

E. Put the affected vSAN host into maintenance mode to physically replace the storage device.

F. Remove the affected Disk from the Disk Group, and choose Full Data Migration.

A customer has upgraded to vSAN 7, but there is still an existing legacy host which must be removed from the vSAN cluster.

Which three steps must an administrator take to successfully remove this host from the vSAN cluster? (Choose three.)

A. Place the host in maintenance mode with Ensure Accessibility

B. Disconnect from vCenter Server

C. Place the host in maintenance mode with Full Data migration

D. Place the host in maintenance mode with no data migration

E. Remove from vSAN cluster

F. Delete the disk group(s) on the legacy host

An 8-Node vSAN Stretched Cluster (4+4+1) with a single disk group has a policy with PFTT=1 (mirrored

across sites) and SFTT=1/FTM Mirroring (Local Protection) configured.

The administrator has been alerted that there is a problem with the cluster. The following has been

observed:

The vSAN Witness Host is offline.

Two disk failures on two hosts have occurred in the preferred site.

This has resulted in a critical production virtual machine's vmdk becoming inaccessible.

Which step needs to be performed by the administrator to resolve the issue?

A. Replace all failed disks on the preferred site.

B. Replace the vSAN Witness Host

C. Replace access to the existing vSAN Witness Host

D. Replace only one failed disk on the preferred site.

An administrator is tasked to create a custom storage policy for workloads and is including additional disk stripes while defining the storage policy.

What is the main purpose of this practice?

A. To increase available storage space

B. To set a failure tolerance

C. To improve performance

D. To reconstruct corrupted data

A 4-node vSAN cluster is configured with an erasure coding storage policy. The Ensure Accessibility maintenance mode was selected. While performing the maintenance, a second node fails.

What will be the impact on the vSAN cluster?

A. There will be no impact on performance.

B. The VMs will no longer be accessible.

C. The performance will be degraded.

D. The VMs will be in a suspended state.

An administrator of “vsan-prod” cluster noticed the witness components of VMs are flagged as absent after a failed attempt to replace the vSAN Witness Host.

Which action should the administrator take to resolve this issue?

A. Upgrading the vSAN on-disk format

B. Running the vSAN Skyline Health check to ensure there are vSAN Object Health errors and executing the Repair Object Immediately option

C. Using the RVC command: vsan.resync_dashboard ~/computers/vsan-prod

D. Placing the vSAN Witness Host in Maintenance Mode and adding to the vSAN cluster

An architect is designing a vSAN cluster.

Which storage controller option will yield optimal performance?

A. Hugh queue depth

B. Set caching to 50% read on the controller

C. Enable battery write-back caching

D. RAID 0

An administrator is tasked with preparing for a Cross vCenter migration in a stretched vSAN cluster where the virtual machines migration will be orchestrated via VMware Site Recovery Manager.

Which action should the administrator take so the migration is successful?

A. Disable vSAN Deduplication and Compression

B. Reconfigure vCenter HA Admission control

C. Enable vCenter Single Sign-On Enhanced Linked Mode

D. Make sure that Witness traffic is on the management NIC.