| step | query | auth | servers |
| 1 | 36.20.136.64.in-addr.arpa. | . | (a,j,m,g,e,d,l,i,k,f,c,h,b).root-servers.net. |
| 2 | 36.20.136.64.in-addr.arpa. | in-addr.arpa. | (e,d,f,c,a,b).in-addr-servers.arpa. |
| 3 | 36.20.136.64.in-addr.arpa. | 64.in-addr.arpa. | (y,t,x,r,z,v,w,u).arin.net. |
| 4 | 36.20.136.64.in-addr.arpa. | 20.136.64.in-addr.arpa. | authns.iad.untd.com. authns.dca.untd.com. authns.vgs.untd.com. |
We pick