How do cctld's store domains in zone file

[alireza.damji at gmail.com]

Hello PPL,
I would like to understand how a second level cctld stores
domains...example the cctld co.tz.

they will have this in the named.conf:
zone "co.tz" {type master; file "db.co.tz.txt"; };


so....will the domains such as 'domain.co.tz' be in the "db.co.tz.txt"
like:

...SOA records for co.tz here
domain		IN  NS  ns1.domain.co.tz.
domain		IN  NS  ns2.domain.co.tz.

domain2		IN  NS  ns1.domain2.co.tz.
domain2		IN  NS  ns2.domain2.co.tz.

domain3		IN  NS  ns1.domain3.co.tz.
domain3		IN  NS  ns2.domain3.co.tz.



or will it have its own zone file.

Thanks,
Ali.