What is DNS?

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DNS stands  for domain name system.In the  recent post  we have discussed what a domain name is.Domain name is a name by which a website is identified.Internet is  based on IP addresses.You can access a website with directly with a domain name because DNS  translates the domain name into IP address.If there  was no DNS you will be asked to type  the  IP address of the  website which  you  wish to visit. DNS works by associating a unique IP address with each domain name.
When a domain name is registered, it is assigned to more than one nameservers(A name server translates domain names into IP addresses).The second nameserver responds if  the first server(primary server) fails.When we make a request to access a website, it locates the corresponding nameserver which finds server  with  corresponding  domain name and IP  address and gets the correct IP address for the website.

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