We pick m.root-servers.net, one of the 13 root servers (1), and ask it about domainnamemonitoring.be and learn that be is delegated to five name servers (2), so we ask m.ns.dns.be and get the following answer:
Domainnamemonitoring.be is a domain controlled by two domain name servers at dns.be having a total of three IP numbers. All three of them are on different IP networks.