When checking to see whether a particular name is registered on the internet, your computer accesses a database that is kept on a(n) server. url xml ftp dns?

DNS

Explanation:

When you request a web address like we usually see this as an address. However, a computer translates this address into an IP by contacting its DNS server for a lookup. If there is an IP address match, the DNS server will respond with where is located. It is a request and receives a sort of handshake. In short, Domain Name System (DNS) is a protocol that governs how devices connected to the internet exchange data. It is responsible for converting web addresses like that we can easily understand into IP addresses.

i believe the two important functions that skype uses are nat traversal and user location.good luck        

explanation:

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