Which configuration item is a hard requirement to deploy a Nutanix cluster?

The CVM IP address is a hard requirement for deploying a Nutanix cluster. Each CVM must have a unique IP address assigned to it as this IP address is critical for cluster operations, including data replication, management activities, and communication between CVMs and hypervisors. The other options, while important for various functionalities, do not represent a hard requirement for initial deployment.References:

Nutanix University - NCS-Core 6.8 Learning Path

The Nutanix Bible, Cluster Configuration chapter (https://www.nutanixbible.com/ )