In a Direct Lake semantic model with 500 million rows, which mode will DAX queries use?

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Multiple Choice

In a Direct Lake semantic model with 500 million rows, which mode will DAX queries use?

Explanation:
Direct Lake mode is used when the data stays in the data lake and DAX queries run against that lake rather than being loaded into memory. With a dataset of 500 million rows, importing all the data into the analysis engine would be impractical both in memory use and refresh times. Direct Lake keeps the data in the lake and uses the semantic model to map to it, allowing queries to read only the necessary portions through the lake-backed engine (with pushdown and pruning where possible). That’s why DAX queries will operate in Direct Lake mode here.

Direct Lake mode is used when the data stays in the data lake and DAX queries run against that lake rather than being loaded into memory. With a dataset of 500 million rows, importing all the data into the analysis engine would be impractical both in memory use and refresh times. Direct Lake keeps the data in the lake and uses the semantic model to map to it, allowing queries to read only the necessary portions through the lake-backed engine (with pushdown and pruning where possible). That’s why DAX queries will operate in Direct Lake mode here.

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