To answer this question, you need to understand the characteristics of a data warehouse. Let's go through each option to understand why it is correct or incorrect:
Option A) Summarized queries that perform aggregations and joins - This option is a characteristic of a data warehouse. Data warehouses are designed to support complex queries that involve aggregations and joins to provide summarized information.
Option B) Heterogeneous data sources - This option is a characteristic of a data warehouse. Data warehouses are built by integrating data from different sources, which may have different formats and structures. This allows for a comprehensive view of the data.
Option C) Voluminous historical data - This option is a characteristic of a data warehouse. Data warehouses store large amounts of historical data to support trend analysis, forecasting, and decision-making based on historical patterns.
Option D) Sub-second response time - This option is NOT a characteristic of a data warehouse. Data warehouses are optimized for analytical processing rather than real-time transactional processing. While they can provide fast query performance, sub-second response time is typically not a requirement for a data warehouse.
The correct answer is D) Sub-second response time. This option is not a characteristic of a data warehouse because data warehouses are not typically designed to provide sub-second response times.