| step | query | auth | servers |
| 1 | 20.50.55.69.in-addr.arpa. | . | (h,m,k,l,a,e,d,f,j,c,i,g,b).root-servers.net. |
| 2 | 20.50.55.69.in-addr.arpa. | in-addr.arpa. | (a,b,f,d,c,e).in-addr-servers.arpa. |
| 3 | 20.50.55.69.in-addr.arpa. | 69.in-addr.arpa. | (v,u,w,z,r,t,x,y).arin.net. |
| 4 | 20.50.55.69.in-addr.arpa. | 50.55.69.in-addr.arpa. | (ns2,ns3,ns4,ns1).serverstack.com. |
We pick