| step | query | auth | servers |
| 1 | 187.28.106.198.in-addr.arpa. | . | (h,l,e,b,k,c,i,m,a,f,d,g,j).root-servers.net. |
| 2 | 187.28.106.198.in-addr.arpa. | in-addr.arpa. | (a,d,e,c,b,f).in-addr-servers.arpa. |
| 3 | 187.28.106.198.in-addr.arpa. | 198.in-addr.arpa. | (t,x,v,r,w,y,z,u).arin.net. |
| 4 | 187.28.106.198.in-addr.arpa. | 106.198.in-addr.arpa. | (auth23,auth22,auth21,auth25,auth24).ns.gin.ntt.net. |
| 5 | 187.28.106.198.in-addr.arpa. | 28.106.198.in-addr.arpa. | (ns1,ns2).secure.net. |
We pick