Domain Name System Is Responsible For. Authoritative DNS has the final authority over a domain and is responsible for providing answers to recursive DNS servers with the IP address information. DNS is a core component of both our local networks and the Internet.
Domain Name Server DNS is a standard protocol that helps Internet users discover websites using human readable addresses. The Domain Name System delegates the responsibility of assigning domain names and mapping those names to Internet resources by designating authoritative name servers for each domain. The domain name system DNS is a naming database in which internet domain names are located and translated into internet protocol addresses.
Network administrators may delegate authority over sub-domains of their allocated name space to other name servers.
ICANN gives permission to companies called Domain Name Registrars for selling domain names. The Domain Name System DNS is the phonebook of the Internet. DNS which stands for Domain Name System is used as the medium to translate domain names to their respective IP addresses when a client initiates a request query. Like a phonebook which lets you look up the name of a person and discover their number DNS lets you type the address of a website and automatically discover the Internet Protocol IP address for that website.