20 Diagram Domain Name System Dns New

Dns domain name system name service in internet zone is an administrative unit domain is a subtree.
Diagram domain name system dns. Dns is a directory service that provides a mapping between the name of a host on the network and its numerical address. The network only understands binary addresses but users find it difficult to use binary addresses and would like to use alphabetic or alphanumeric addresses. Dns is required for the functioning of the internet.
Name to address resolution the host request the dns name server to resolve the domain name. In simple terms a domain name system dns is a collection of databases that translate hostnames to ip addresses. Dns or domain name system was created to resolve the relationship between the internet address that is specified as a text string and the ip address.
And the name server returns the ip address corresponding to that domain name to the host so that the host can future connect to that ip address. Every computer a server or client participating in the internet activities providing or receiving services must have a unique ip address.