| step | query | auth | servers |
| 1 | 204.128.253.159.in-addr.arpa. | . | (i,b,a,e,c,d,g,k,m,h,f,l,j).root-servers.net. |
| 2 | 204.128.253.159.in-addr.arpa. | in-addr.arpa. | (b,e,c,f,d,a).in-addr-servers.arpa. |
| 3 | 204.128.253.159.in-addr.arpa. | 159.in-addr.arpa. | (t,y,r,x,w,z,u,v).arin.net. |
| 4 | 204.128.253.159.in-addr.arpa. | 128.253.159.in-addr.arpa. | (ns1,ns2).arpa.networklayer.com. |
We pick