40 Explain Domain Name System Structure Update

In simple terms a domain name system dns is a collection of databases that translate hostnames to ip addresses.

Explain domain name system structure. The domain name system dns is a hierarchical and decentralized naming system for computers services or other resources connected to the internet or a private network. It associates various information with domain names assigned to each of the participating entities. In the file system naming is done from the root down but in the domain name system it is done from the bottom to the root.

They serve as a database or to be more precise they serve as a phone book for connecting ip addresses with corresponding domain names these servers are called name servers. Name to address resolution the host request the dns name server to resolve the domain name. In the domain name structure computer ip address mappings equivalent to files are placed in domains and these domains can contain other domains sub domains.

In the same way that a gps needs a street address or a zipcode to provide directions a web browser needs a domain name to direct you to a website. The sole purpose of the dns system is to make your browsing more comfortable. Most prominently it translates more readily memorized domain names to the numerical ip addresses needed for locating and.

The root of the structure is a dot. Click for larger image. Dns stands for domain name system and it is a set of specialized dns servers that have only one purpose.

Together they make up what is called the domain name. Name server the name server forms part of the domain name system that has been set up to answer queries regarding domains. A domain name takes the form of two main elements.

This is a dns server designated to handle dns queries and or provide additional information about the domain. Dns stores the database of all the. Dns domain name system name service in internet zone is an administrative unit domain is a subtree.