To uniquely define server instances in the Cisco UCS system, what do you configure?

A service profile uniquely defines a server instance by containing all its logical identifiers, such as UUIDs, MAC addresses, WWN addresses, and boot order, enabling stateless computing and hardware abstraction.

vMotion is a VMware feature for live migration of virtual machines between hosts, not a Cisco UCS configuration element used to uniquely define physical server instances.

A UUID resource pool is a source from which unique UUIDs are drawn for assignment, but the pool itself is not the configuration object that defines the entire server instance; the service profile uses it.

A vNIC template defines the configuration for virtual network interface cards, which is only one component of a server's identity and configuration, not the singular element that uniquely defines the entire server instance.