An architect is designing the expansion of an existing vSphere 7 environment. The customer is requesting a design for a new cluster to support the anticipated future business growth. The requirements specified for the existing environment design must be considered when designing the new cluster.
The existing design has the following requirements:
✑ REQ01 The environment has an availability target of 99.5% for all infrastructure.
✑ REQ02 The recovery time objective (RTO) for Tier 1 virtual machines is one hour.
✑ REQ03 Windows and Linux virtual machines must reside on separate clusters.
✑ REQ04 Access to the management cluster within the environment must be controlled.
Which of the listed requirements would be classified as a functional requirement?