What is the primary function of the Domain Name System (DNS)?

The primary function of the Domain Name System (DNS) is to act as a naming system for computers, which translates human-readable domain names (like www.example.com) into machine-readable IP addresses (like 192.0.2.1). This is essential for the functioning of the internet, as computers and other devices need to communicate over IP addresses. DNS allows users to access websites and services using easily memorized names rather than cumbersome numerical addresses.

While other options mention various functions related to web usage, they do not accurately represent the core purpose of DNS. Email protocols focus on communications, content databases are used for storing website information separate from domain name resolutions, and domain management tools pertain to administrative aspects of owning domain names rather than the technical function of converting names into IP addresses. Understanding this fundamental role of DNS is crucial in grasping how internet infrastructure operates.