| step | query | auth | servers |
| 1 | 220.52.55.69.in-addr.arpa. | . | (i,f,j,d,k,h,g,a,l,m,b,e,c).root-servers.net. |
| 2 | 220.52.55.69.in-addr.arpa. | in-addr.arpa. | (b,d,e,f,c,a).in-addr-servers.arpa. |
| 3 | 220.52.55.69.in-addr.arpa. | 69.in-addr.arpa. | (z,x,y,w,u,v,r,t).arin.net. |
| 4 | 220.52.55.69.in-addr.arpa. | 52.55.69.in-addr.arpa. | (ns4,ns2,ns3,ns1).serverstack.com. |
We pick