DNS Full Form | Full Form of DNS




DNS Full Form - Domain Name System

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Domain Name System

  • DNS stands for Domain Name System. The internet world is totally supported IP (Internet Protocol) address.
  • To access any website you would like to understand its IP address which may be a long numeric code and isn't possible to find out.
  • Now, here comes the role of DNS. A DNS is an online service that translates a website name into corresponding IP address.
  • Domain Name used here is alphabetic and may be easily remembered.
  • For example, www.example.com may be a domain name of a site. And with the help of DNS it'll get translate into its IP address 198.105.232.4.

How DNS works

  • DNS works with the help of DNS servers.
  • When a user enters the domain name into the online browser, the request goes to the DNS server.
  • The DNS server determines the IP address using a look-up table. Then it sends the requested information to user’s web browser through proper servers.
  • Furthermore, a DNS system has its own network. If one DNS server doesn't know how to translate a specific name, it'll ask another server, then another server, and so on, until they determine the correct IP address.
  • A DNS server holds a list of all IP addresses alongside its domain names, which may be retrieved when required.
Domain Name System

How DNS works

Features

  • DNS server gives a high performance and user interface. User interface has got to handle a huge number of DNS.
  • DNS features a distributed database.
  • Additional records also are stored in DNS database.
  • It contains number of record types to facilitate other applications. For example, Mail Exchanger (MX) record.
  • Any application which uses internet to attach from two or more host to share some information relies on DNS.

Advantages

  • The messages are delivered to users with zero downtime.
  • Automatically corrects the typos.
  • In case of maintenance or downtime the requests are answered by the closest node through anycast technology.

Disadvantages

  • ICANN can control the DNS root registry that's a personal non - profit organization that connects to a specific country and difficulties the abstract idea of network neutrality.
  • The collapse of DNS would destroy the World Wide Web (WWW), even though there are over one root server and backup servers, which can cause immense harm at different locations, DNS servers have decided.


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