We pick h.root-servers.net, one of the 13 root servers (1), and ask it about fundacao-mario-soares.pt and learn that pt is delegated to eight name servers (2), so we ask auth200.ns.uu.net where we learn that fundacao-mario-soares.pt is delegated to two name servers, including ns01.fccn.pt (3), so we ask that one and get the following answer:
Fundacao-mario-soares.pt is a domain controlled by two domain name servers at fccn.pt having a total of four IP numbers. Some of them are on the same IP network. Incoming mail for fundacao-mario-soares.pt is handled by one mail server also at fccn.pt having a total of two IP numbers. Both are on different IP networks.