Which vSphere feature mitigates common optimization challenges?

vSphere Trust Authority focuses on strengthening the security posture of the virtualized infrastructure by ensuring trusted boot and integrity, not resource optimization.

vSphere High Availability (HA) provides automatic restart of virtual machines on healthy hosts in case of an ESXi host failure, focusing on uptime and fault recovery, not resource optimization.

vSphere DRS monitors resource utilization (CPU, memory) across ESXi hosts in a cluster and uses vSphere vMotion to automatically migrate virtual machines, ensuring optimal performance and resource distribution. This proactive balancing directly mitigates common optimization challenges such as overloaded hosts or underutilized resources, making it a key optimization tool.

vSphere Fault Tolerance (FT) provides continuous availability for applications by creating and maintaining a live shadow instance of a virtual machine, ensuring zero downtime in case of a host failure, which is a different goal than resource optimization.