| step | query | auth | servers |
| 1 | 10.36.239.216.in-addr.arpa. | . | (i,l,e,a,b,d,c,m,g,j,h,k,f).root-servers.net. |
| 2 | 10.36.239.216.in-addr.arpa. | in-addr.arpa. | (d,e,f,b,c,a).in-addr-servers.arpa. |
| 3 | 10.36.239.216.in-addr.arpa. | 216.in-addr.arpa. | (z,x,u,r,t,v,w,y).arin.net. |
| 4 | 10.36.239.216.in-addr.arpa. | 36.239.216.in-addr.arpa. | (ns3,ns2,ns4,ns1).google.com. |
We pick