Multiple choice technology web technology

Aggregation provides OLAP with __________

  1. Multidimensional data.

  2. Pre-calculated data.

  3. Nested data.

  4. Slow data retrieval.

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Aggregation in OLAP pre-calculates and stores summarized measures (sums, averages, etc.) at various dimensional levels. This optimization dramatically improves query performance by avoiding runtime calculations on large datasets.