A vSAN administrator is responsible for managing a customer's production vSAN cluster that is going to be used to provide SMB file shares to a number of host clients. The vSAN administrator must take action so the performance of all services in the production vSAN cluster can be monitored.
Which two services must be enabled for this monitoring to occur? (Choose two.)

Correct Answer:CE
To monitor the performance of vSAN File Services, the vSAN administrator must enable both the vSAN File Services and the vSAN Performance Service. The vSAN File Services provides SMB file shares to host clients, while the vSAN Performance Service collects and analyzes performance statistics and displays them in the vSphere Client. The other services are not related to vSAN File Services performance monitoring.
References: VMware vSAN Specialist v2 EXAM 5V0-22.23, page 9, Objective 7.4; [vSAN File Services]; [vSAN Performance Service]

In which type of environment is vSAN storage used as a mandatory, primary storage?

Correct Answer:A
VMware Cloud on AWS is a service that delivers a fully managed VMware SDDC on AWS infrastructure. It uses vSAN as the mandatory, primary storage for the SDDC clusters. vSAN provides a high-performance, resilient, and secure shared storage solution for the VMware Cloud on AWS environment. The other options are not correct, as vSAN is not mandatory or primary for them. VMware Horizon, VMware Aria Automation, and Tanzu Kubernetes Grid Integrated Edition can use vSAN as an optional or secondary storage solution, but they can also use other types of storage. References: , section 1.1; , section 1.2

An administrator wants to assign a storage policy to a workload on a two-node vSAN OSA cluster consisting of three disk groups each with nested fault domains. The virtual machine must be protected against a disk or disk group failure.
Which two storage policies meet these requirements? (Choose two.)

Correct Answer:CE
To protect a virtual machine against a disk or disk group failure, the storage policy must have a failure tolerance method (FTM) of RAID-1 or RAID-6 and a failure to tolerate (FTT) value of at least 1. RAID-1 mirrors the data across multiple disk groups, while RAID-6 uses erasure coding to stripe the data and parity information across multiple disk groups. RAID-5 is not suitable for this scenario, as it can only tolerate one disk failure per stripe. FTT 2 or 3 would require more disk groups than available in the
cluster. Therefore, the correct options are C and E. References: 1, page 8; 2, section 3.1

A vSAN administrator is investigating vSAN performance related problems but cannot find any vSAN performance statistics on the cluster summary page.
Why is this situation occurring?

Correct Answer:D
The reason why the vSAN administrator cannot find any vSAN performance statistics on the cluster summary page is that the vSAN performance service is not enabled. The vSAN performance service is a feature that collects and analyzes performance metrics and displays them in graphical charts in vCenter. The vSAN performance service must be turned on manually for each vSAN cluster, as it is not enabled by default. The other options are not correct. The integration of vRealize Operations Manager with the vSAN cluster is not required to view vSAN performance statistics, as they are available in vCenter. The administrator??s permissions on the cluster level do not affect the visibility of vSAN performance statistics, as they are accessible to any user who can view the cluster. vSAN performance statistics are not only available via CLI, as they can also be viewed in vCenter using the vSAN performance service. References: About the vSAN Performance Service; Enable or Disable the Performance Service

An administrator is upgrading multiple vSAN Witness nodes with vLCM (single image management) that are used for vSAN Stretched and two-node Clusters.
What two witness node types can the administrator upgrade? (Choose two.)

Correct Answer:AC
To upgrade multiple vSAN Witness nodes with vLCM (single image management) that are used for vSAN Stretched and two-node Clusters, the administrator can upgrade two witness node types: appliance witness node and nested witness node. An appliance witness node is a virtual ESXi host that runs on a physical ESXi host and contains the witness components of VM objects stored in the vSAN cluster. A nested witness node is a virtual ESXi host that runs on another virtual ESXi host and contains the
witness components of VM objects stored in the vSAN cluster. Both types of witness nodes can be managed by vLCM as independent nodes since vSphere 7.0 Update 3, as long as they are version 7.0 Update 2 or later. The other options are not correct. A shared witness node is a witness node that serves multiple vSAN clusters, which is not supported by vLCM. A dedicated witness node is a witness node that serves only one vSAN cluster, which is not a specific type of witness node. A physical witness node is aphysical ESXi host that contains the witness components of VM objects stored in the vSAN cluster, which cannot be upgraded by vLCM. References: vSphere Lifecycle Manager and the vSAN Witness Hosts; Shared Witness for 2-Node vSAN Deployments

A vSAN administrator is noticing that the objects resynchronizing in the cluster are taking longer than expected and wants to view the resynchronizing metrics.
Which performance category should the vSAN administrator open?

Correct Answer:D
To view the resynchronizing metrics, the vSAN administrator should open the Backend performance category. This category shows the performance of vSAN data components, such as read/write latency, IOPS, throughput, congestion, and resync traffic. The other categories are not relevant for this task. Disks shows the performance of physical disks in the cluster, Host Network shows the network performance of vSAN hosts, and Resvnc Latency shows the latency of resynchronization operations. References: 1, page 23; 3, section 6.4