How to get BIND ver from remote host?

[Kazuhiro Asakura]

Hello,

I have a simple question.
How to get BIND version from remote host? And I wish hide it
from remote host.

I taking a security check by network vender. That vender say,
"I can look your BIND version from remote host."

I use BIND-4.9.7.


Regards,
Kazuhiro