Final answer:
The Domain Name System (DNS) enables the use of user-friendly domain names to address network resources instead of numeric IP addresses.
Step-by-step explanation:
The protocol that allows people to use names or labels to address network resources, rather than numeric addresses, is the Domain Name System (DNS). DNS is a hierarchical and decentralized naming system for computers, services, or other resources connected to the Internet or a private network. Most importantly, it translates user-friendly domain names (such as www.example.com) into the numerical IP addresses (like 192.0.2.1) that computers use to identify each other on the network.