| step | query | auth | servers |
| 1 | 167.72.55.65.in-addr.arpa. | . | (g,i,b,a,d,j,m,f,c,l,k,e,h).root-servers.net. |
| 2 | 167.72.55.65.in-addr.arpa. | in-addr.arpa. | (f,c,b,d,e,a).in-addr-servers.arpa. |
| 3 | 167.72.55.65.in-addr.arpa. | 65.in-addr.arpa. | (y,u,z,v,x,w,r,t).arin.net. |
| 4 | 167.72.55.65.in-addr.arpa. | 55.65.in-addr.arpa. | (ns3,ns2,ns1,ns4,ns5).msft.net. |
We pick