DNS delegation of cingularpr.com updated: May 23, 2013 8:36:17 AM
Delegation
step
query
auth
servers
1
cingularpr.com.
.
(i,a,b,c,l,g,d,m,k,h,e,f,j).root-servers.net.
2
cingularpr.com.
com.
(f,e,m,k,h,l,c,j,b,i,a,g,d).gtld-servers.net.
3
cingularpr.com.
cingularpr.com.
(ns1,ns2).rookdns.com.
We pick i.root-servers.net, one of the 13 root servers (1), and ask it about cingularpr.com and learn that com is delegated to 13 name servers (2), so we ask f.gtld-servers.net where we learn that cingularpr.com is delegated to two name servers, including ns1.rookdns.com (3), so we ask that one and get the following answer: