We pick g.root-servers.net, one of the 13 root servers (1), and ask it about pcglobal.ro and learn that ro is delegated to six name servers (2), so we ask ns-ext.isc.org where we learn that pcglobal.ro is delegated to four name servers, including ns1.afraid.org (3), so we ask that one and get the following answer:
Pcglobal.ro is a domain controlled by four domain name servers at afraid.org having a total of five IP numbers. All five of them are on different IP networks. Incoming mail for pcglobal.ro is handled by one mail server at pcglobal.ro themselves. We are missing the IP:s of one server: mail.pcglobal.ro. Pcglobal.ro has one IP number (188.26.61.135), but the reverse is ?.