We pick a.root-servers.net, one of the 13 root servers (1), and ask it about conae.gob.ar and learn that ar is delegated to five name servers (2), so we ask ctina.ar where we learn that conae.gob.ar is delegated to four name servers, including ns2.mrecic.gov.ar (3), so we ask that one and get the following answer:
Conae.gob.ar is a domain controlled by four domain name servers at gov.ar and gob.ar. Two of them are on the same IP network. Incoming mail for conae.gob.ar is handled by two mail servers at gob.ar. Both are on the same IP network.