You have data files in Azure Blob storage. You plan to transform the files and move them to Azure Data Lake Storage. You need to transform the data by using mapping data flow. Which Azure service should you use?
C is correct.
https://docs.microsoft.com/en-us/azure/data-factory/concepts-data-flow-overview#:~:text=Mapping%20data%20flows%20are%20visually%20designed%20data%20transformations,Factory%20pipelines%20that%20use%20scaled-out%20Apache%20Spark%20clusters.
Mapping data flows are visually designed data transformations in Azure Data Factory. Data flows allow data engineers to develop data transformation logic without writing code. Data flow activities can be operationalized using existing Azure Data Factory scheduling, control, flow, and monitoring capabilities.
For Copy activity, with this connector you can:
Copy data from/to Azure Data Lake Storage Gen2 by using account key, service principal, or managed identities for Azure resources authentications.
Copy files as-is or parse or generate files with supported file formats and compression codecs.
Preserve file metadata during copy.
Preserve ACLs when copying from Azure Data Lake Storage Gen1/Gen2.
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