| step | query | auth | servers |
| 1 | 63.224.125.74.in-addr.arpa. | . | (h,i,l,f,g,a,j,b,c,e,d,k,m).root-servers.net. |
| 2 | 63.224.125.74.in-addr.arpa. | in-addr.arpa. | (b,a,e,f,c,d).in-addr-servers.arpa. |
| 3 | 63.224.125.74.in-addr.arpa. | 74.in-addr.arpa. | (w,y,u,r,z,t,x,v).arin.net. |
| 4 | 63.224.125.74.in-addr.arpa. | 125.74.in-addr.arpa. | (ns4,ns2,ns1,ns3).google.com. |
We pick