Which of the following is NOT a characteristic of a data warehouse? a) It is a collection of data from different sources. b) It is stored in a way that makes it easy to analyze. c) It is designed to store historical data. d) It is updated in real time.
Question
Which of the following is NOT a characteristic of a data warehouse? a) It is a collection of data from different sources. b) It is stored in a way that makes it easy to analyze. c) It is designed to store historical data. d) It is updated in real time.
Solution
The answer is d) It is updated in real time. Data warehouses are typically updated on a regular basis (daily, weekly, monthly) rather than in real time. This is because they are designed to handle large amounts of historical data for analysis and reporting purposes, and real-time updates could impact their performance.
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