What is the deal on missing "Authority Section" and "additional section" from google's DNS servers?

[Michael Hoskins (michoski)]

-----Original Message-----

From: Ted Mittelstaedt <tedm at ipinc.net>
Date: Tuesday, July 10, 2012 6:24 PM
To: "bind-users at lists.isc.org" <bind-users at lists.isc.org>
Subject: What is the deal on missing "Authority Section" and
"additional	section" from google's DNS servers?

>   I can't seem to find an option to turn off additional data.  How
>does Google and OpenDNS do it?  WHY do they do it?

have you tried "minimal-responses yes;"?

it can increase name server performance, but can also increase client
workload (e.g. lead to additional queries).  some might also feel it's
best to be "conservative in what you send".