What is the purpose of the Domain Name System (DNS) in the internet?

What is the purpose of the Domain Name System (DNS) in the internet?

• A. DNS translates domain names to IP addresses.
• B. DNS stores web pages.
• C. DNS routes emails.
• D. DNS compresses data.

Answer: (A)

Think of the Domain Name System as the internet’s phone book. Its job is to translate human-friendly domain names, like example.com, into the numeric IP addresses that computers use to locate servers on the network. When you enter a web address, your device asks a DNS resolver to look up the IP address for that domain, and once it has it, the browser can connect to the correct server. DNS makes using the internet practical, because we remember names, not long strings of numbers. It doesn’t store web pages, which live on web servers; it doesn’t route emails by itself (that involves mail servers and specific DNS records), and it doesn’t compress data.

Think of the Domain Name System as the internet’s phone book. Its job is to translate human-friendly domain names, like example.com, into the numeric IP addresses that computers use to locate servers on the network. When you enter a web address, your device asks a DNS resolver to look up the IP address for that domain, and once it has it, the browser can connect to the correct server. DNS makes using the internet practical, because we remember names, not long strings of numbers. It doesn’t store web pages, which live on web servers; it doesn’t route emails by itself (that involves mail servers and specific DNS records), and it doesn’t compress data.