| step | query | auth | servers |
| 1 | 214.151.135.61.in-addr.arpa. | . | (j,h,f,c,e,i,l,k,a,d,g,b,m).root-servers.net. |
| 2 | 214.151.135.61.in-addr.arpa. | in-addr.arpa. | (e,c,f,a,d,b).in-addr-servers.arpa. |
| 3 | 214.151.135.61.in-addr.arpa. | 61.in-addr.arpa. | ns4.apnic.net. ns2.lacnic.net. apnic1.dnsnode.net. tinnie.arin.net. ns1.apnic.net. ns3.apnic.net. sec1.authdns.ripe.net. |
| 4 | 214.151.135.61.in-addr.arpa. | 135.61.in-addr.arpa. | (ns,ns2).bta.net.cn. |
| 5 | 214.151.135.61.in-addr.arpa. | 151.135.61.in-addr.arpa. | (dns,ns1,ns2).sohu.com. |
We pick