| step | query | auth | servers |
| 1 | 2.144.207.132.in-addr.arpa. | . | (i,g,j,f,d,c,b,e,l,a,k,m,h).root-servers.net. |
| 2 | 2.144.207.132.in-addr.arpa. | in-addr.arpa. | (d,e,c,a,b,f).in-addr-servers.arpa. |
| 3 | 2.144.207.132.in-addr.arpa. | 132.in-addr.arpa. | (t,r,z,y,u,v,w,x).arin.net. |
| 4 | 2.144.207.132.in-addr.arpa. | 207.132.in-addr.arpa. | dns2.cdec.polymtl.ca. charles.cdec.polymtl.ca. clouso.risq.polymtl.ca. |
We pick