What is a DNS ??

I think the analogy on Wikipedia of what DNS is ,probably describes it best,in that it is like a phone book.Every computer and internet site has an Ip address.There are two types of Ip called IPv4 and IPv6 and to remember some of these addresses would be near impossible,especially Ipv6 which comprises of  many numbers and letters.The Domain Name System distributes the responsibility of assigning domain names and mapping those names to IP addresses.

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