Thanks to Henrick Walter for his article "Exchange Schema Versions - Common Questions & Answers". He describes that you can find your Exchange version by looking to the RangeUpper value in Active Directory Schema (configuration partition).
Unfortunately, I did not find out how to check the Rollup version for Exchange servers. To check this you may read Bhargav's IT Playground blog and its article "How do I check Update Rollup version on Exchange 20xx Server?" Download the mentioned PowerShell Script Get-ExchangeUpdateRollups.ps1 and run it! Works fantastically!
