Which term is responsible for translating domain names to IP addresses?

• A. Router
• B. DNS
• C. Wi-Fi
• D. DHCP

Answer: (B)

Domain names are translated into IP addresses by the Domain Name System. Humans remember names like example.com, but computers need numeric IPs to locate servers on the network. DNS acts as a distributed directory that maps those names to the corresponding IP addresses. When you try to reach a website, your device asks a DNS resolver to translate the domain name. The resolver may query a hierarchy of DNS servers—root, top-level domain, and authoritative servers—to find the exact address. Once an IP is obtained, your device uses it to connect, and the result can be cached to speed up future lookups.

Other options don’t perform this name-to-address translation. A router directs traffic between networks, Wi‑Fi describes the wireless access method, and DHCP assigns IP addresses to devices within a local network. DNS operates separately to resolve names into numbers needed for routing across the internet.