| step | query | auth | servers |
| 1 | 15.56.160.209.in-addr.arpa. | . | (f,m,i,g,c,k,b,a,j,l,d,e,h).root-servers.net. |
| 2 | 15.56.160.209.in-addr.arpa. | in-addr.arpa. | (d,f,c,e,a,b).in-addr-servers.arpa. |
| 3 | 15.56.160.209.in-addr.arpa. | 209.in-addr.arpa. | (u,r,v,x,t,w,z,y).arin.net. |
| 4 | 15.56.160.209.in-addr.arpa. | 56.160.209.in-addr.arpa. | (ns1,ns6,ns3,ns4,ns5,ns2).hopone.net. |
We pick