Free 5V0-21.21 Sample Questions — VMware HCI Master Specialist

Upon investigating a workload performance issue, a vSAN administrator observed a high backend IOPs on a vSAN cluster. Which two causes explain this behavior? (Choose two.)

• A. The cluster DRS threshold has been set to Aggressive
• B. There is a vSAN node failure
• C. The vSAN Resync throttling is enabled
• D. The object repair timer value has been increased
• E. The vSAN policy protection level has changed from FTT=0 to FTT=1

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

An architect is currently working with a customer to transform their existing ESXi hosts to vSAN nodes. The customer expressed the following requirements. • First phase will transform 50% of the hosts to a hybrid vSAN nodes. • Second phase will transform the remaining 50% hosts to an All-Flash vSAN nodes. The following constraint exists: • Each host has a 4-port x 1 GbE network interface. Which two recommendations should the architect make to align with the customer's requirements? (Choose two.)

• A. Hybrid vSAN clusters can have shared 1 GbE network adapters
• B. All-Flash vSAN clusters must have dedicated 10 GbE network adapters
• C. Hybrid vSAN clusters must have dedicated 1 GbE network adapters
• D. All-Flash vSAN clusters can have shared 10 GbE network adapters
• E. Hybrid vSAN clusters must have dedicated 10 GbE network adapters

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 is planning to deploy cloud-native workloads onto the vSAN Direct datastore. Which storage policy structure rule is supported?

• A. Host-based rules
• B. vVOL storage rules
• C. Tag-based placement rules
• D. Storage performance-based rules

An architect collected the below technical requirements from the customer during a vSAN cluster design workshop: ✑ Maximize the vSAN datastore usable capacity. ✑ Deduplication and compression are required to help utilize available capacity efficiency. ✑ Ensure the highest level of resiliency wherever possible. Which disk group configuration should the architect include in the design?

• A. One disk group per host, with one cache tier flash disk and four capacity tier flash disks
• B. Two disk groups per host, each with one cache tier flash disk and four capacity tier flash disks
• C. Two disk groups per host, each with one cache tier flash disk and six capacity tier flash disks
• D. Two disk groups per host, each with one cache tier flash disk and six capacity tier magnetic disks

An architect needs to automate an infrastructure that supports VMware Horizon as well as VMware Tanzu. Which solution mandates the use of VMware vSAN?

• A. VMware Cloud Foundation
• B. VMware Horizon
• C. VMware Tanzu
• D. VMware vRealize Automation

An administrator has been tasked with enabling encryption for existing virtual machines on a vSAN cluster. Which three prerequisites must be satisfied before completing the task? (Choose three.)

• A. Create an encryption storage policy
• B. Enable Data-In-Transit encryption first
• C. Enable that the virtual machines are powered on
• D. Verify if a role with privilege "Cryptographic operations.Encrypt new" is assigned
• E. Verify if a role with privilege "Cryptographic operations.Migrate" is assigned
• F. Establish a trusted connection with the KMS

An administrator notes that the Data-At-Rest Encryption keys have expired. Which action is needed to resolve this situation?

• A. Add a new Standard Key Provider at the vSAN cluster level
• B. Generate new encryptions keys at the vSAN cluster level
• C. Add an additional KMS at the vCenter server level
• D. Generate new encryptions keys at the vCenter server level

Upon checking the latency goal under vSAN performance diagnostics, the vSAN Administrator sees this message displayed: The increase in latency in the vSAN stack might be beyond expected limits. Which two root causes can be identified to help remediate the issue? (Choose two.)

• A. vSAN VMKemel portgroup is configured with the "Route based on IP hash" teaming policy
• B. vSAN encryption is enabled
• C. Large packet losses and retransmissions on the network layer
• D. Incorrect sizing of the disk groups capacity disks
• E. One or more disk groups are congested

An administrator has noticed that a number of the virtual machines in the preferred site are showing as either failed or partitioned. In which two ways would the administrator expect the virtual machines to respond? (Choose two.)

• A. They will be disconnected
• B. They will be restarted in the secondary site
• C. They will be restarted at the preferred site
• D. They will be powered off
• E. They will be removed from inventory

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

A customer is planning to migrate their physical Microsoft SQL Server clustered workloads to vSAN enabled vSphere clusters. The following requirements must be met: ✑ Each MSSQL cluster is made up of 3 nodes ✑ Highest possible availability against node failures ✑ Some of the vSAN clusters will only consume storage What should the architect recommend?

• A. vSAN iSCSI Target Service
• B. Stretched vSAN Cluster
• C. vSAN Direct
• D. vSAN File Services

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?

• 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)

An administrator wants to deploy Kubernetes on an end-to-end VMware stack, using VMware vSAN for storage. Which VMware product should the administrator install as the Kubernetes platform choice?

• A. VMware Tanzu Kubernetes Grid
• B. VMware Tanzu Data services
• C. VMware Tanzu Build service
• D. VMware Tanzu Mission Control

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. 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. firewall is blocking ports

During a planning session for new vSAN clusters in multiple data centers, the customer relayed the following information: ✑ Highest possible mitigation during a host failure in terms of capacity. ✑ A constraint in this year's IT budget. What should the architect recommend?

• A. Enable operations reserve. A minimum cluster of 3 vSAN nodes
• B. Enable host build reserve. A minimum cluster of 4 vSAN nodes
• C. Enable performance services. A minimum cluster of 6 vSAN nodes
• D. Enable IOInsight Metrics. A minimum cluster of 2 vSAN ROBO nodes

An administrator is setting up vSAN file services on a vSAN cluster. Which two security policies on the distributed port groups are automatically enabled in the process? (Choose two.)

• A. Forged Transmits
• B. Promiscuous Mode
• C. DVFiltering
• D. Jumbo Frames
• E. MacLearning

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

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