We pick d.root-servers.net, one of the 13 root servers (1), and ask it about cx.ca and learn that ca is delegated to nine name servers (2), so we ask k.ca-servers.ca where we learn that cx.ca is delegated to two name servers, including ns2.fw2.com (3), so we ask that one and get the following answer:
Cx.ca is a domain controlled by two domain name servers at fw2.com. Both are on different IP networks. Incoming mail for cx.ca is handled by one mail server at cx.ca themselves. Cx.ca has one IP number (208.56.127.99), which also has a corresponding reverse pointer.
Three percent of the more than a thousands domains that use name server group 1 point only to the IP number 216.147.9.210 (example: equipe3.ca, peterrose.ca and snuff.ca ).
