We pick g.root-servers.net, one of the 13 root servers (1), and ask it about 6.0.0.0.a.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.0.0.0.0.8.d.6.0.1.0.0.2.ip6.arpa and learn that ip6.arpa is delegated to six name servers (2), so we ask d.ip6-servers.arpa where we learn that 6.0.1.0.0.2.ip6.arpa is delegated to six name servers, including sec3.apnic.net (3), so we ask that one and get the following answer:
Authoritative answer
ANSWER for 6.0.0.0.a.0.0.0.0.0.0.0.0.0.0.0.1.0.0.0.0.0.0.0.8.d.6.0.1.0.0.2.ip6.arpa.
