Databricks Certified Data Engineer - Professional
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When encountering performance issues while querying a large dataset in Delta Lake, which technique would you apply to enhance query performance without substantially increasing storage costs?
A
Convert the dataset to a different format, such as CSV, for faster read performance.
B
Increase the file size of your Delta Lake table‘s underlying Parquet files.
C
Implement Z-order optimization on columns that are often queried together.
D
Repartition the data by the most frequently queried column.