| step | query | auth | servers |
| 1 | 136.128.158.169.in-addr.arpa. | . | (g,l,e,i,f,d,c,m,k,a,b,h,j).root-servers.net. |
| 2 | 136.128.158.169.in-addr.arpa. | in-addr.arpa. | (d,e,c,a,b,f).in-addr-servers.arpa. |
| 3 | 136.128.158.169.in-addr.arpa. | 169.in-addr.arpa. | (x,w,y,z,u,v,dill,t).arin.net. |
| 4 | 136.128.158.169.in-addr.arpa. | 158.169.in-addr.arpa. | ns.ceniai.net.cu. canada.cuba.cu. rip.psg.com. |
We pick