Explanation: Box 1: blob The following example creates an external data source for Azure Data Lake Gen2 CREATE EXTERNAL DATA SOURCE YellowTaxi WITH ( LOCATION = 'https://azureopendatastorage.blob.core.windows.net/nyctlc/yellow/', TYPE = HADOOP) Box 2: HADOOP Reference: https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/develop-tables-external-tables