| step | query | auth | servers |
| 1 | 122.178.238.77.in-addr.arpa. | . | (k,a,j,e,g,l,c,f,i,b,d,m,h).root-servers.net. |
| 2 | 122.178.238.77.in-addr.arpa. | in-addr.arpa. | (c,d,a,f,b,e).in-addr-servers.arpa. |
| 3 | 122.178.238.77.in-addr.arpa. | 77.in-addr.arpa. | sns-pb.isc.org. sec1.apnic.net. tinnie.arin.net. sec3.apnic.net. ns3.nic.fr. pri.authdns.ripe.net. |
| 4 | 122.178.238.77.in-addr.arpa. | 178.238.77.in-addr.arpa. | (ns1,ns5,ns4,ns2,ns3).yahoo.com. |
We pick