Domain Name System (DNS) is a hostname for IP address translation service. DNS is a distributed database implemented in a hierarchy of name servers. It is an application layer protocol for message exchange between clients and servers. DNS Resolves names to numbers and domain names to IP Addresses. It's like a phone book. We don’t look for the number first, we look for the name first similar to the domain name. ● Components of DNS ROOT Servers — They are the root, of the DNS