| step | query | auth | servers |
| 1 | 156.173.11.212.in-addr.arpa. | . | (i,m,d,e,g,j,h,b,l,k,f,c,a).root-servers.net. |
| 2 | 156.173.11.212.in-addr.arpa. | in-addr.arpa. | (f,e,b,d,a,c).in-addr-servers.arpa. |
| 3 | 156.173.11.212.in-addr.arpa. | 212.in-addr.arpa. | sec1.apnic.net. tinnie.arin.net. sec3.apnic.net. ns3.nic.fr. sns-pb.isc.org. pri.authdns.ripe.net. |
| 4 | 156.173.11.212.in-addr.arpa. | 173.11.212.in-addr.arpa. | (sans,mans).sps.net.sa. |
We pick