Name Resolution Performance of Windows DNS Server 2012 R2
Great post from Windows Network Blog Team, and DNS is one of the core pillars for the Exchange environment. I recommend reading the entire article, but one of the interesting points was that on average, an authoritative DNS Server with 2 million records will use 2 GB of memory 🙂
This article details the name resolution performance of the windows DNS Server 2012 R2, when deployed in a strictly authoritative mode on which recursion has been disabled and root hints have been removed.
Read more at source: http://blogs.technet.com/b/networking/archive/2014/07/08/name-resolution-performance-of-windows-dns-server-2012-r2.aspx