[dns-operations] ANY request

[Fabien CHABANNE]

Hello everyone,
I'm new in the dns community and have a question to ask. If someone
could help me it would be nice. 

I tested the ANY request on some nameservers of google
(ns1.google.com., ns2.google.com., ...) and I see that they do not
always reply by a full response and they do not set the Truncated bit.
For exemple they do not always return the SOA record and all of the NS
records but a part of it. So I was wondering if this way of answering
to an ANY query was correct and how can we have the entire response ? 

Regards

Fabien CHABANNE
AFNIC
Zonecheck maintainer