Acronym of ARPA

( Address and Routing Parameter Area ) Domain name five oceans a top level domain in the domain name system of the internet. that solely for the purposes of infrastructure characteristics of the was used. While the principle of the name of it for the representation of the advanced research projects that the enterprise established findings in the United States, and advancing the development of the internet (ARPANET was). but now, its name stands for the area parameter address and the routing.
five oceans, 6 subdomain, including the sphere, the answer return the name of the domain in-addr.arpa, and ip6.arpa to arrange for the Internet Protocol Version 4 and Internet Protocol Version 6.

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