We pick k.root-servers.net, one of the 13 root servers (1), and ask it about utech.edu.jm and learn that jm is delegated to five name servers (2), so we ask jm.cctld.authdns.ripe.net where we learn that utech.edu.jm is delegated to two name servers, including dns.utech.edu.jm (3), so we ask that one and get the following answer:
Utech.edu.jm is a domain controlled by seven domain name servers at ns.jm and edu.jm. There are two duplicated IP numbers. All three of them are on the same IP network. We are missing the IP:s of two servers: dns.cast.edu.jm and ns.cast.edu.jm. Incoming mail for utech.edu.jm is handled by three mail servers at edu.jm. All three of them are on the same IP network. Utech.edu.jm has one IP number (200.9.115.9), but the reverse is www.utech.edu.jm.