正解:D
In Cisco Unified Computing System (UCS), a service profile's UUID (Universally Unique Identifier) can be allocated from a UUID pool. This pool is predefined within UCS Manager and allows for consistent identity assignment across different hardware, enabling stateless computing. The UUIDs are not based on the hardware, not vendor assigned, and although they are unique, they are not system generated in this context; they are drawn from a pool created specifically for service profiles to ensure uniqueness and manageability within the UCS environment.
References: The concept of UUID pools and their use in service profiles is detailed in the Cisco Data Center Core Technologies documentation, particularly in sections discussing service profile creation and management within the UCS Manager. For a deeper understanding, the Cisco UCS Manager GUI Configuration Guide provides step-by-step instructions on how to create and assign UUID pools for service profiles.