| step | query | auth | servers |
| 1 | 120.9.23.62.in-addr.arpa. | . | (k,c,f,e,g,a,j,b,i,l,h,m,d).root-servers.net. |
| 2 | 120.9.23.62.in-addr.arpa. | in-addr.arpa. | (f,b,d,e,a,c).in-addr-servers.arpa. |
| 3 | 120.9.23.62.in-addr.arpa. | 62.in-addr.arpa. | ns3.nic.fr. sec3.apnic.net. pri.authdns.ripe.net. sns-pb.isc.org. tinnie.arin.net. sec1.apnic.net. |
| 4 | 120.9.23.62.in-addr.arpa. | 23.62.in-addr.arpa. | (ns3,ns2,ns4).colt.net. |
We pick