Microsoft Fabric Data Engineer Associate DP-700 Practice Question
You are designing a batch transformation in a Microsoft Fabric lakehouse. Sales information is stored in three normalized Delta tables named Orders, OrderLines, and Products. Analysts want a single wide table that contains one row per order line and all related product and order attributes to avoid run-time joins in Power BI. Which approach should you use to create the denormalized table while keeping ACID guarantees in the lakehouse?
Create a Fabric notebook that uses PySpark to join the Orders, OrderLines, and Products Delta tables and write the joined result as a new Delta table in the lakehouse.
Create an eventstream in Real-Time Intelligence to ingest the three tables and use KQL to materialize the joined output.
Use a pipeline copy activity to copy each source table into separate folders in the lakehouse and enable Auto Optimize on the folders.
Enable mirroring on the source database so the normalized schema is replicated automatically and rely on the default semantic model in Power BI.
A Fabric notebook that uses PySpark can read the existing Delta tables, join them, and write the result back as a new Delta table in the same lakehouse. Spark provides scalable batch joins and can write transactional Delta output, so the resulting table remains ACID compliant and queryable by downstream tools. Eventstreams target real-time workloads and do not perform batch joins. A pipeline copy activity that simply moves each table preserves the normalized structure and does not create the required wide table. Mirroring replicates the source schema but does not combine tables, so analysts would still need to perform joins.
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Microsoft Fabric Data Engineer Associate DP-700
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