| step | query | auth | servers |
| 1 | 101.27.51.72.in-addr.arpa. | . | (d,f,a,e,j,b,i,g,c,l,h,m,k).root-servers.net. |
| 2 | 101.27.51.72.in-addr.arpa. | in-addr.arpa. | (f,d,e,c,b,a).in-addr-servers.arpa. |
| 3 | 101.27.51.72.in-addr.arpa. | 72.in-addr.arpa. | (v,y,u,x,z,r,w,t).arin.net. |
| 4 | 101.27.51.72.in-addr.arpa. | 27.51.72.in-addr.arpa. | (ns2,ns1).peer1.net. |
| 5 | 101.27.51.72.in-addr.arpa. | 101.27.51.72.in-addr.arpa. | ns-1665.awsdns-16.co.uk. ns-272.awsdns-34.com. ns-968.awsdns-57.net. ns-1038.awsdns-01.org. |
We pick