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5V0-21.21 Questions and Answers

Question # 6

An administrator wants to deploy a desktop and application virtualization solution on top of vSAN.

Which VMware product should the administrator install?

A.

VMware Dynamic Environment Manager

B.

VMware Horizon Apps

C.

VMware Workspace One Access

D.

VMware Horizon

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Question # 7

A company has engaged a consultant to upgrade an existing vSAN cluster to vSAN 7.0 U1.

During the discovery phase, the consultant found the following information about the existing environment:

* The VMware vCenter Server has recently been upgraded from VMware vSphere 6.7 U3 to version 7.0 U1.

* The vSAN Cluster was recently expanded with identical hardware specification, but from a different hardware vendor.

* The hardware for each vSAN node is listed on the vSAN Compatibility Guide (VCG) for vSAN 7.

* The vSAN Cluster has the following configuration:

- vSAN version: 6.6.1

- Number of vSAN nodes: 10

- Encryption: enabled

- Deduplication and Compression: enabled

- vSAN Capacity Utilization: 60%

* Each vSAN node has the following configuration:

- VMware vSphere ESXi version: 6.5 Update 3

- CPU: 2 processors, 20 cores

- RAM: 768GB RAM.

- Disk: 2 Cache SSDs and 6 Capacity SSDs

- Network: 4 x 10GbE

Which three recommendations should the consultant make to ensure all data remains protected in the event of a vSAN failure? (Choose three.)

A.

The Full data migration maintenance mode option must be chosen to protect the data during the upgrade.

B.

The Ensure accessibility, migration maintenance mode option must be chosen to protect the data during the upgrade.

C.

The upgrade process should be completed using host upgrade baselines in VMware vSphere Lifecycle Manager (vLCM).

D.

The vSAN nodes should be upgraded to vSphere ESXi 7.0 U1.

E.

The upgrade process should be completed using images in VMware vSphere Lifecycle Manager (vLCM).

F.

The vSAN nodes should be upgraded to vSphere ESXi 6.7 U3.

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Question # 8

An architect is reviewing a vSAN cluster that has an unbalanced cluster configuration.

Which behavior will the architect observe?

A.

Consistent maintenance procedures

B.

Reduced predictability of storage performance

C.

Reduced deduplication capabilities

D.

Faster rebuild times

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Question # 9

An administrator is troubleshooting vSAN performance issues, and the performance diagnostics reports:

"There are errors seen in one or more physical NICs on one or more hosts."

Which two problems must be resolved to fix this issue? (Choose two.)

A.

A 25 Gb/s NIC needs to be installed.

B.

There are incompatible firmware and driver versions.

C.

There is an incorrectly set MTU.

D.

The vSAN version needs to be upgraded to 7.0.

E.

A firewall is blocking ports.

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Question # 10

A customer is planning to deploy a vSAN cluster to host their in-house distributed ERP system. The hardware specifications for their server nodes include:

* 2 x Intel Xeon CPU E5-2697 v3 @ 2.60GHz

* 1TB memory

Which boot device is supported for the vSAN ESXi nodes for this customer?

A.

A 16GB single-level cell (SLC) SATADOM device must be used.

B.

A 4GB USB or SD device must be used.

C.

A 16GB multiple-level cell (MLC) SATADOM device must be used.

D.

ESXi Hosts must boot from a PMEM device.

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Question # 11

An administrator wants to check the performance metrics for the workloads and their virtual disks that are running on a vSAN cluster, but no statistical charts are displayed in the vSphere client.

Why is this behavior being seen?

A.

vSAN network diagnostic mode is not enabled.

B.

vSAN proactive tests haven’t been run yet.

C.

vSAN performance service is turned off.

D.

vSAN performance verbose mode is not enabled.

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Question # 12

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?

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.

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Question # 13

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

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Question # 14

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

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Question # 15

During a maintenance action on a vSAN node, a vSAN administrator noticed that the default repair delay time is about to be reached.

Which two commands must be run to extend the time? (Choose two.)

A.

/etc/init.d/vsanmgmtd restart

B.

esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 50

C.

esxcli system settings advanced set -o /VSAN/ClomRepairDelay -i 80

D.

/etc/init.d/clomd restart

E.

/etc/init.d/vsanobserver restart

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Question # 16

During a vSAN design workshop, an architect collected these customer requirements:

* Leverage vSAN storage policies with Erasure Coding.

* Enable Deduplication and Compression.

* Use the minimum number of hosts in the cluster.

* Maintain full storage policy compliance when two nodes are down.

Which vSAN cluster design meets the customer’s requirements?

A.

Five nodes All-Flash vSAN cluster

B.

Six nodes All-Flash vSAN cluster

C.

Six nodes Hybrid vSAN cluster

D.

Five nodes Hybrid vSAN cluster

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Question # 17

An organization has two vSAN clusters managed by the same vCenter Server, each providing 100TB of storage. The first cluster runs at 75% of its storage capacity, and the second cluster runs at 50% of its storage capacity.

The company also has the following:

* An iSCSI array of 300TB. which runs at 76% of its capacity

* A NAS system of 200TB, which runs at 10% of its capacity

* A Fiber channel (FC) array of 300TB, which runs at 80% of its capacity

The administrator is asked to add an additional 25TB of storage to the first cluster. The administrator is also made aware that there is no budget to purchase new hardware and that the vSAN Storage Policy Based Management must be kept in place.

Which storage option will work for this use case?

A.

Create an HCI Mesh using the first cluster’s datastore.

B.

Obtain additional free capacity from the existing NAS storage.

C.

Obtain additional free capacity from the existing FC storage.

D.

Create an HCI Mesh using the second cluster’s datastore.

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Question # 18

An administrator is planning to change a vSAN Storage Policy to apply a Failures To Tolerate (FTT) of 2, using RAID-6.

What is the minimum number of vSAN nodes required?

A.

6

B.

4

C.

5

D.

8

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Question # 19

As a part of a network hardware refresh project, all the network switches have been replaced with a newer, high-performance model. After the replacement, the company users started experiencing slowness on the applications hosted on their vSAN-backed VMs.

The vSAN administrator checked the vSAN Network Health status and noticed that the "Hosts large ping test" has failed.

What could be the cause of this performance degradation issue?

A.

MTU 9K is not configured on the hosts vSAN vMKernel ports.

B.

MTU 9K is not configured on the hosts VMnic ports.

C.

MTU 9K is not configured on the ToR switch.

D.

MTU 9K is not configured on the vDS switch.

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