Which of the following maps a domain name to its corresponding IP address?

Correct option is B

The Domain Name System (DNS) is a hierarchical system used to translate human-readable domain names (e.g., www.example.com) into machine-readable IP addresses. DNS ensures users can access websites using easy-to-remember names instead of numerical IP addresses.
Important Key Points:
1. DNS functions as the internet's phonebook, linking domain names to their respective IP addresses.
2. It works through a distributed network of DNS servers to resolve queries.
3. DNS caching helps speed up access by storing previous query results.
Knowledge Booster:
· C, HTML, JavaScript, and Python: Programming languages, not related to mapping domain names to IPs.
· DNS works with protocols like UDP and TCP on port 53.
· Reverse DNS Lookup: Resolves an IP address back to its domain name.