Multiple choice technology

Which type of indexing benefits data warehouse applications?

  1. Vector indexing

  2. B-tree indexing

  3. Bitmapped indexing

  4. Join indexing
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C Correct answer
Explanation

Bitmapped indexing is highly efficient for data warehouse applications because it uses bitmaps to represent indexing information, making it ideal for low-cardinality columns (like gender, status, yes/no fields) and complex multi-column queries common in analytical processing. B-tree indexing is better suited for OLTP systems with high-cardinality data, while vector indexing and join indexing are not standard indexing techniques used in data warehouses.

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