| step | query | auth | servers |
| 1 | 43.32.13.72.in-addr.arpa. | . | (f,k,i,j,b,a,h,m,l,g,c,d,e).root-servers.net. |
| 2 | 43.32.13.72.in-addr.arpa. | in-addr.arpa. | (e,f,d,a,c,b).in-addr-servers.arpa. |
| 3 | 43.32.13.72.in-addr.arpa. | 72.in-addr.arpa. | (v,x,t,r,u,z,y,w).arin.net. |
| 4 | 43.32.13.72.in-addr.arpa. | 32.13.72.in-addr.arpa. | ns2.nsiregistry.net. ns1.crsnic.net. |
We pick