| step | query | auth | servers |
| 1 | 101.205.15.64.in-addr.arpa. | . | (c,j,b,e,h,i,a,f,g,d,l,k,m).root-servers.net. |
| 2 | 101.205.15.64.in-addr.arpa. | in-addr.arpa. | (f,b,c,e,d,a).in-addr-servers.arpa. |
| 3 | 101.205.15.64.in-addr.arpa. | 64.in-addr.arpa. | (w,u,v,r,z,x,y,t).arin.net. |
| 4 | 101.205.15.64.in-addr.arpa. | 205.15.64.in-addr.arpa. | (ns1,ns2,ns3).savvis.net. |
We pick