| step | query | auth | servers |
| 1 | 10.38.239.216.in-addr.arpa. | . | (f,b,a,m,h,i,k,d,g,e,l,c,j).root-servers.net. |
| 2 | 10.38.239.216.in-addr.arpa. | in-addr.arpa. | (d,f,a,e,b,c).in-addr-servers.arpa. |
| 3 | 10.38.239.216.in-addr.arpa. | 216.in-addr.arpa. | (u,y,w,z,t,v,x,r).arin.net. |
| 4 | 10.38.239.216.in-addr.arpa. | 38.239.216.in-addr.arpa. | (ns4,ns2,ns1,ns3).google.com. |
We pick