| step | query | auth | servers |
| 1 | 63.187.172.216.in-addr.arpa. | . | (e,d,h,m,f,j,l,i,k,a,c,g,b).root-servers.net. |
| 2 | 63.187.172.216.in-addr.arpa. | in-addr.arpa. | (e,a,c,d,f,b).in-addr-servers.arpa. |
| 3 | 63.187.172.216.in-addr.arpa. | 216.in-addr.arpa. | (w,u,z,y,v,t,x,r).arin.net. |
| 4 | 63.187.172.216.in-addr.arpa. | 187.172.216.in-addr.arpa. | (ns3,ns1,ns2,ns4).p13.dynect.net. |
We pick