Choose this option to use this SQL Server instance as a Head or Compute node in a PolyBase Scale-out group. Selecting this ...

Choose this option to use this SQL Server instance as a Head or Compute node in a PolyBase Scale-out group. Selecting this option will open Firewall on this machine to allow incoming connections to SQL Server Database Engine, SQL Server PolyBase services and SQL Browser. Selecting this option will also enable MSDTC firewall connections and modify MSDTC registry settings.