We pick j.root-servers.net, one of the 13 root servers (1), and ask it about detranet.mg.gov.br and learn that br is delegated to six name servers (2), so we ask d.dns.br where we learn that mg.gov.br is delegated to four name servers, including zeus.prodemge.gov.br (3), so we ask that one where we see a CNAME from detranet.mg.gov.br to detrannet.prodemge.gov.br, so we have to start all over again. We already know that a.dns.br is authoritative for br (4) and ask it about detrannet.prodemge.gov.br and learn that prodemge.gov.br is delegated to four name servers (5), so we ask titanio.prodemge.gov.br and get the following answer:
