| step | query | auth | servers |
| 1 | 7.40.201.193.in-addr.arpa. | . | (e,c,b,f,d,j,k,a,m,l,i,h,g).root-servers.net. |
| 2 | 7.40.201.193.in-addr.arpa. | in-addr.arpa. | (c,a,e,f,d,b).in-addr-servers.arpa. |
| 3 | 7.40.201.193.in-addr.arpa. | 193.in-addr.arpa. | pri.authdns.ripe.net. tinnie.arin.net. sec3.apnic.net. sec1.apnic.net. ns3.nic.fr. sns-pb.isc.org. |
| 4 | 7.40.201.193.in-addr.arpa. | 40.201.193.in-addr.arpa. | osiris.namex.it. seth.namex.it. decsrv.caspur.it. |
We pick