Registro IPv4
host: cad.Zju.edu.cn
class: IN
ttl: 900
type: A
ip: 210.32.131.2

Servidor de Correo
host: cad.Zju.edu.cn
class: IN
ttl: 900
type: MX
pri: 10
target: cad.Zju.edu.cn

Información TXT
host: cad.Zju.edu.cn
class: IN
ttl: 900
type: TXT
txt: v=spf1 ip4:210.32.131.2 -all
entries: Array