Which two characteristics describe vSphere HA?

vSphere HA's host isolation response mechanism detects when a host loses management network connectivity and considers it isolated, leading to the restart of its VMs on other healthy hosts in the cluster to maintain availability.

vSphere HA, through features like VM Component Protection (VMCP) and datastore heartbeating, monitors datastore accessibility and can restart affected virtual machines on hosts that maintain connectivity to the datastore, ensuring continuous operation.

vSphere HA focuses on restarting VMs to ensure availability during failures, while load balancing is a function of vSphere Distributed Resource Scheduler (DRS).

Maintaining a secondary VM synchronized in real-time to prevent data loss is a feature of vSphere Fault Tolerance (FT), not vSphere HA.

vSphere HA's primary role is to restart VMs upon host or VM failure or isolation, not specifically in response to vCenter Server downtime, although HA clusters continue to function if vCenter Server is unavailable.