A business unit requires proprietary data to be protected against a site failure while using the least amount of storage and the least amount of nodes. AN administrator plans to implement a vSAN Stretched Cluster with a RAID-5 policy.
What is the minimum number of data nodes across all sites in this vSAN Stretched Cluster configuration?

An existing vSAN cluster has this specification:
Four ESXi hosts with all flash configuration
Each with two disk groups
Each disk group with one cache device and four capacity devices
There are five more device slots available
The CTO would like to provision new applications, and these will need more capacity and performance.
Which two methods may be used by the vSAN administrator to meet this goal? (Choose two.)

A vSAN administrator is implementing deduplication and compression on a vSAN all-flash cluster but wants the VMs to remain operational. The details are as follows:
There are 4 nodes in the vSAN cluster.
Existing VMs use a RAID-5 storage policy.
Which action should the vSAN administrator take to meet this goal?

A vSAN administrator, who has a cluster that has both compute-only and vSAN ReadyNodes, recently received a request to deploy a new application with higher storage performance requirements than what are currently available.
What are two ways the administrator can reconfigure the vSAN cluster to obtain this additional performance? (Choose two.)

A vSAN administrator has been tasked with troubleshooting an application in a Hybrid vSAN environment. The application is I/O intensive, and the magnetic capacity devices may be playing a role in slow performance, so the administrator decides to take action to help resolve the problem.
Which action should the administrator take?