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Domain Name System (DNS)

Every device connected to the Internet has a unique name. These unique names enable information to flow through the Internet from and to specific sites unambiguously. Thus, when sending an e-mail or retrieving information from an Internet site, one can be assured that the e-mail goes to its intended recipient or that the webpage retrieved is the one that was requested. This worldwide system of unique names is possible because of the Domain Name System (DNS). The DNS is based on a set of regulations that were established in 1983. An example of a name might be www.thisexample.com. The naming system assigns each connected item a top-level domain (TLD) name or a country code, and a second-level domain name, and these names are specified from ...

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