A data engineering team runs a nightly workload of SQL queries and Spark DataFrame transformations over large Delta tables — heavy scans, joins, and aggregations. Their cluster uses a Databricks Runtime with Photon enabled, and a new engineer asks what Photon actually contributes. Which answer is correct?
Reveal answer
Correct answer: A vectorized C++ engine that accelerates SQL and DataFrame workloads such as scans, joins, and aggregations
Reference: https://docs.databricks.com/aws/en/compute/photon
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02 — The Myelin Layer · Canonical Discussion
Where the exam tries to trick you — and how those who passed solved it.
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Official Answer (A): A vectorized C++ engine that accelerates SQL and DataFrame workloads such as scans, joins, and aggregations
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