DP-203 Exam Dumps | You are implementing a batch dataset in the Parquet format. Data tiles will be produced by using Azure

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You are implementing a batch dataset in the Parquet format.
Data tiles will be produced by using Azure Data Factory and stored in Azure Data Lake Storage Gen2. The files will be consumed by an Azure Synapse Analytics serverless SQL pool.
You need to minimize storage costs for the solution.
What should you do?

A. Store all the data as strings in the Parquet tiles.

B. Use OPENROWEST to query the Parquet files.

C. Create an external table mat contains a subset of columns from the Parquet files.

D. Use Snappy compression for the files.

Correct Answer: C

An external table points to data located in Hadoop, Azure Storage blob, or Azure Data Lake Storage. External tables are used to read data from files or write data to files in Azure Storage. With Synapse SQL, you can use external tables to read external data using dedicated SQL pool or serverless SQL pool.
Reference:
https://docs.microsoft.com/en-us/azure/synapse-analytics/sql/develop-tables-external-tables

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