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What do the root DNS Servers track?

What do the root DNS Servers track?

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What do the root DNS Servers track?

The mapping of domain names to IP addresses works in a hierarchical order using DNS (Domain Name System) zones. Root servers serve the root zone, which tops of the and they publish the root zone file. In turn, the root zone file contains resource records for the authoritative servers of all TLDs. These servers can directly answer queries for records stored or cached within the root zone, and they can also refer other requests to the appropriate Top Level Domain (TLD) server. The TLD servers are the DNS server group one step below root servers in the DNS hierarchy, and they are an integral part of resolving DNS queries. During an uncached DNS query, whenever a user enters a web address into their browser, this action triggers a DNS lookup, and all DNS lookups start at the root zone.

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