| step | query | auth | servers |
| 1 | 10.154.219.200.in-addr.arpa. | . | (c,h,k,e,i,d,m,j,a,l,g,f,b).root-servers.net. |
| 2 | 10.154.219.200.in-addr.arpa. | in-addr.arpa. | (e,a,b,d,f,c).in-addr-servers.arpa. |
| 3 | 10.154.219.200.in-addr.arpa. | 200.in-addr.arpa. | a.arpa.dns.br. tinnie.arin.net. ns.lacnic.net. sec3.apnic.net. ns-lacnic.nic.mx. sec1.authdns.ripe.net. ns2.lacnic.net. ns3.afrinic.net. |
| 4 | 10.154.219.200.in-addr.arpa. | 154.219.200.in-addr.arpa. | (a,c,b,e,d).dns.br. |
We pick