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Domain Name Space = resource recordsassociated with name see also: RFC 1034 4.2:How the database is divided into zones. = zone of authority,managed by a name server "delegated subzone" "zone delegation" NS RR ("resource record")names the nameserverauthoritative fordelegated subzone When a system administratorwants to let another administratormanage a part of a zone, the firstadministrator's nameserver delegatespart of the zone to anothernameserver.