We pick c.root-servers.net, one of the 13 root servers (1), and ask it about nakayo.leland.bj and learn that bj is delegated to five name servers (2), so we ask nakayo.leland.bj where we learn that leland.bj is delegated to two name servers, including ns1.benintelecoms.bj (3), so we ask that one and get the following answer:
The two name servers ns1.intnet.bj and nakayo.leland.bj together
Six of the about thirty domains that use name server group 1 use the mail server bow.intnet.bj only (but not nakayo.leland.bj ).
The mail server nakayo.leland.bj
There are six domains that use the mail server nakayo.leland.bj.
Four of those use name server group 2.
Three of them use mail server group 1.
The two name servers bow.intnet.bj and nakayo.leland.bj together
Two of the six domains that use name server group 2 use the mail server nakayo.leland.bj only (but not bow.intnet.bj ). Worth noting is that all of the domains that use the mail server nakayo.leland.bj only (but not bow.intnet.bj ) use name server group 2.
The mail server nakayo.leland.bj only
All of the two domains that use the mail server nakayo.leland.bj only (but not bow.intnet.bj ) use name server group 2. Worth noting is that two of the domains that use name server group 2 use the mail server nakayo.leland.bj only (but not bow.intnet.bj ).
The IP number 81.91.225.1
All of the one host names that point to the IP number 81.91.225.1 point only to that ip number.