I would like to know about version

I would like to know about version 10.5 build 55.8nc . It can protect DNS Null attack or not ?
or that need config and how to config for protect DNS Null attack ?
I been open case as ref case 63110954

ผลลัพธ์ (อังกฤษ) 2:

I would like to know about version 10.5 build 55.8nc. It Can Protect DNS Attack Null or Not?
or that config Need and How to Protect DNS config for Null Attack?
I been Open Case As the 63110954th Case Ref.