Databricks Certified Data Engineer - Professional
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Which of the following statements accurately describes the relationship between Delta Lake and the Lakehouse architecture?
A
Because Parquet compresses data row by row. strings will only be compressed when a character is repeated multiple times.
B
Delta Lake automatically collects statistics on the first 32 columns of each table which are leveraged in data skipping based on query filters.
C
Views in the Lakehouse maintain a valid cache of the most recent versions of source tables at all times.
D
Primary and foreign key constraints can be leveraged to ensure duplicate values are never entered into a dimension table.
E
Z-order can only be applied to numeric values stored in Delta Lake tables.