| step | query | auth | servers |
| 1 | 17.236.231.193.in-addr.arpa. | . | (a,g,i,d,e,k,h,b,m,c,j,f,l).root-servers.net. |
| 2 | 17.236.231.193.in-addr.arpa. | in-addr.arpa. | (b,c,f,d,a,e).in-addr-servers.arpa. |
| 3 | 17.236.231.193.in-addr.arpa. | 193.in-addr.arpa. | ns3.nic.fr. sns-pb.isc.org. tinnie.arin.net. pri.authdns.ripe.net. sec1.apnic.net. sec3.apnic.net. |
| 4 | 17.236.231.193.in-addr.arpa. | 236.231.193.in-addr.arpa. | (ns1,ns2).rdsnet.ro. |
We pick