authoritative server is not caching?

[Torinthiel]

On 2011-07-19 11:40, pangj at laposte.net wrote:
>
> Hello,
>
> I want to make sure that if the authoritative server won't cache
 > anything even if the authoritative answer from itself? Coz I saw
 > the book Pro DNS and BIND says: The (authoritative) name server
 > does not cache.

Authoritative server cannot cache anser from itself. Cache is for 
answers a server has received from somewhere,  while authoritative 
answers come directly from zone data.
Torinthiel