| step | query | auth | servers |
| 1 | 124.247.160.in-addr.arpa. | . | (k,c,h,f,g,e,b,l,m,i,j,d,a).root-servers.net. |
| 2 | 124.247.160.in-addr.arpa. | in-addr.arpa. | (b,e,a,d,c,f).in-addr-servers.arpa. |
| 3 | 124.247.160.in-addr.arpa. | 160.in-addr.arpa. | (x,u,z,w,t,v,y,r).arin.net. |
| 4 | 124.247.160.in-addr.arpa. | 247.160.in-addr.arpa. | ns3.ipc.konan-u.ac.jp. sigw.sinet.ad.jp. ns1.ipc.konan-u.ac.jp. |
We pick