Ordering Example
zsh[462]: nslookup -type=ns cig.mot.com
cig.mot.com nameserver = koala.cig.mot.com
cig.mot.com nameserver = motcig.cig.mot.com
zsh[463]: nslookup -type=ns cig.mot.com
cig.mot.com nameserver = motcig.cig.mot.com
cig.mot.com nameserver = koala.cig.mot.com