Pass the VMware VMware Certified Master Specialist - HCI 2021 5V0-21.21 Questions and answers with CertsForce

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Questions # 1:

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?

Options:

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.


Expert Solution
Questions # 2:

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?

Options:

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


Expert Solution
Questions # 3:

An administrator has an absent capacity disk.

Which action, if any, should the administrator take to resolve the problem?

Options:

A.

Wait, and vSAN will rebuild it.


B.

Replace the faulty disk.


C.

Replace the faulty host.


D.

Verify the host is not isolated.


Expert Solution
Questions # 4:

An architect intends to use the Primary Level of Failures To Tolerate (PFTT) to calculate the minimum number of required hosts for a vSAN cluster.

Which calculation model should be used?

Options:

A.

1 * PFTT + 1


B.

2 * PFTT + 2


C.

1 * PFTT + 2


D.

2 * PFTT + 1


Expert Solution
Questions # 5:

An administrator is planning to deploy workloads on a six node vSAN cluster, and all nodes are distributed equally across three racks.

Which action is required to ensure that the workload VMs remain compliant with the default vSAN policy after a complete rack failure?

Options:

A.

Add an additional rack with two hosts, and configure vSAN with four fault domains and FTT=1 (erasure coding).


B.

Add two additional hosts per rack, and configure vSAN with three fault domains and FTT=1.


C.

Add an additional host per rack, and configure vSAN with three fault domains and FTT=2.


D.

Add an additional rack with two hosts, and configure vSAN with four fault domains and FTT=1 (mirroring).


Expert Solution
Questions # 6:

In a stretched vSAN cluster, how is Read Locality established after fail over to the secondary site?

Options:

A.

100% of the reads comes from vSAN hosts on the local site


B.

50% of the reads comes from vSAN hosts on the local site


C.

100% of the reads comes from vSAN hosts on the remote site


D.

50% of the reads comes from vSAN hosts on the remote site


Expert Solution
Questions # 7:

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?

Options:

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.


Expert Solution
Questions # 8:

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.)

Options:

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.


Expert Solution
Questions # 9:

A cache disk failure marked a vSAN disk group as failed, and the data is being rebuilt on other disk groups.

Which action should the vSAN administrator take to reduce the negative impact on the VMs?

Options:

A.

Enabling Resync Throttling


B.

Enabling Maintenance mode with no data evacuation


C.

Enabling automatic rebalance


D.

Setting the vSAN policy’s IOPS limit for object value to 0 (unlimited)


Expert Solution
Questions # 10:

During a vSAN design workshop, a customer expressed a requirement to decommission an existing enterprise NAS device that provides iSCSI services for a clustered application.

Based on the current state analysis, the following information was noted:

• Current utilization is 500 LUNs.

• All clustered workloads are configured for Multiple Connections per Session.

• LUN sizes range between 10 TB to 30 TB.

What should the architect state regarding the requirements?

Options:

A.

All requirements can be satisfied without any change.


B.

Only single connection per session is supported.


C.

The number of LUNs require additional licensing.


D.

It is a best practice to maintain a LUN size of 8 TB.


Expert Solution
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