Which protocol translates domain names into IP addresses?

Which protocol translates domain names into IP addresses?

• A. Dynamic Host Configuration Protocol
• B. Telnet
• C. Domain Name System
• D. Web Server

Answer: (C)

Translating domain names into IP addresses is done by the Domain Name System. Humans use easy-to-remember names like example.com, but computers route traffic using numeric IP addresses. DNS maps those friendly names to the corresponding IPs so devices can locate the exact server to contact. A resolver, typically part of your operating system or provided by your network, queries a hierarchy of DNS servers to find the IP, and results are cached to speed up future lookups. This translation is essential for almost all internet communications because services are accessed by domain names, not raw numbers. The other options serve different functions—DHCP assigns IP addresses to devices, Telnet provides remote login capability, and a web server serves web content—so they don’t perform name-to-address translation.

Translating domain names into IP addresses is done by the Domain Name System. Humans use easy-to-remember names like example.com, but computers route traffic using numeric IP addresses. DNS maps those friendly names to the corresponding IPs so devices can locate the exact server to contact. A resolver, typically part of your operating system or provided by your network, queries a hierarchy of DNS servers to find the IP, and results are cached to speed up future lookups. This translation is essential for almost all internet communications because services are accessed by domain names, not raw numbers. The other options serve different functions—DHCP assigns IP addresses to devices, Telnet provides remote login capability, and a web server serves web content—so they don’t perform name-to-address translation.