| step | query | auth | servers |
| 1 | 52.39.194.173.in-addr.arpa. | . | (i,e,c,j,d,k,g,l,m,f,b,h,a).root-servers.net. |
| 2 | 52.39.194.173.in-addr.arpa. | in-addr.arpa. | (b,c,f,d,e,a).in-addr-servers.arpa. |
| 3 | 52.39.194.173.in-addr.arpa. | 173.in-addr.arpa. | (z,v,w,r,t,u,y,x).arin.net. |
| 4 | 52.39.194.173.in-addr.arpa. | 194.173.in-addr.arpa. | (ns1,ns4,ns2,ns3).google.com. |
We pick