| step | query | auth | servers |
| 1 | 99.137.125.74.in-addr.arpa. | . | (k,d,g,i,l,e,a,h,j,m,c,b,f).root-servers.net. |
| 2 | 99.137.125.74.in-addr.arpa. | in-addr.arpa. | (d,e,f,a,c,b).in-addr-servers.arpa. |
| 3 | 99.137.125.74.in-addr.arpa. | 74.in-addr.arpa. | (z,u,r,y,w,x,v,t).arin.net. |
| 4 | 99.137.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns3,ns1,ns4,ns2).google.com. |
We pick