Explanation/Reference:
Explanation:
In Windows Server 2008 R2, an accounting configuration wizard is added to the Accounting node in the NPS console. By using the Accounting Configuration wizard, you can configure the following four accounting settings:
SQL logging only. By using this setting, you can configure a data link to a SQL Server that allows NPS

to connect to and send accounting data to the SQL server. In addition, the wizard can configure the database on the SQL Server to ensure that the database is compatible with NPS SQL server logging.
Text logging only. By using this setting, you can configure NPS to log accounting data to a text file.

Parallel logging. By using this setting, you can configure the SQL Server data link and database. You

can also configure text file logging so that NPS logs simultaneously to the text file and the SQL Server database.
SQL logging with backup. By using this setting, you can configure the SQL Server data link and

database. In addition, you can configure text file logging that NPS uses if SQL Server logging fails.
References: https://docs.microsoft.com/en-us/windows-server/networking/technologies/nps/nps- accounting-configure