Which three features are provided by Utility Services (US)?

Utility Services (US) is integral to the Avaya Aura architecture, providing essential network services to support IP endpoints and enhance overall system functionality. The features offered by Utility Services include critical functions such as Dynamic Host Configuration Protocol (DHCP), Trivial File Transfer Protocol (TFTP), and Hypertext Transfer Protocol (HTTP) servers, making this option the correct choice.

DHCP server functionality allows IP endpoints to automatically obtain IP addresses and network configuration, simplifying network management and ensuring devices can connect without manual intervention. TFTP is used for downloading configuration files and firmware updates to IP devices, streamlining maintenance and upgrades. HTTP servers facilitate the delivery of web-based applications and services.

The other choices represent different functions or platforms that may be relevant within the broader Avaya ecosystem but are not directly tied to the core offerings of Utility Services in terms of providing these essential network protocols and support for IP endpoints. Thus, the answer reflects the primary focus of Utility Services on enabling critical networking capabilities.