Power BI can connect to many different
data sources. These connection options are called connectors. Take the time to review all the connectors available; you probably will not encounter a question on the PL-300 about an obscure connector, but you
should know the commonly used
connectors:
SQL Server (all the flavors)
Excel/CSV
Folders (SharePoint and File Explorer)
Power Platform
Azure
Power BI dataflows and datasets
Getting the Data
It is usual to initiate ...