Registro IPv4
host: exam-edu.com
class: IN
ttl: 2954
type: A
ip: 208.91.197.195

Servidores DNS Principal (mname) y Secundario (rname)
host: exam-edu.com
class: IN
ttl: 2954
type: SOA
mname: ns.buydomains.com
rname: bd-operations.namemedia.com
serial: 2026081607
refresh: 86400
retry: 7200
expire: 604800
minimum-ttl: 300