In computing, what does DNS stand for?

• A. Domain Name Service
• B. Domain Name System
• C. Dynamic Network System
• D. Data Name System

Answer: (B)

Domain Name System is the naming system used on networks to translate human-friendly domain names into the numerical IP addresses that machines use to locate servers. The idea is to let people type easy-to-remember names like example.com, while the system handles the behind-the-scenes lookup to find the exact address to connect to. This lookup happens through a hierarchy of DNS servers that work together to resolve names quickly and reliably, from recursive resolvers used by your device to authoritative name servers for each domain.

The other options don’t match the established terminology. Using Service would imply a different kind of concept, Dynamic suggests something that changes over time, and Data simply isn’t the standard term used for this global naming and resolution system.