What is the Domain Name System (DNS)?

What does DNS stand for?

Domain call gadget (DNS) is a hierarchical naming Device built on a disbursed Database. This sySTEM transForms domains to IP addresses and Makes it feasible to assign domains to agencies of Internet sources and users, irrespective of the entities’ bodily location.

What Does Domain Name System Mean?

The area call machine consists of a tree of Domain Names. Every leaf, or Node, within the tree has 0 or Greater useful resource Records, which consist of records related to the domain name. The tree further subdivides into zones, starting at the foundation quarter. DNS zones may additionally have one domain, or many domain names and Subdomains relying on the administrative authority Delegated to managers. The consumer facet of DNS, the DNS Resolver, is Chargeable for iNitiating and sequencing queries that lead to complete decision of the sources sought. These queries are both recursive or nonrecursive.

DNS assigns domain names and maps the names to IP addresses by means of designating an authoritative call Server for each area. These servers are responsible for specific domains and might assign the authoritative call servers to subdomains. As a result of this manner, DNS is each dispensed and fault tolerant.

DNS stores a listing of mail servers that take delivery of e-mail for an Internet area. Identifiers including Radio Frequency Identification Tags, generic product Codes (UPCs), international Characters in e-mail addresses and Host Names also use DNS.