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- Question
Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
Options- A. True
- B. False
- Correct Answer
- True
- 1. Most operational systems are based on the use of transient data.
Options- A. True
- B. False Discuss
- 2. Joining is the process of partitioning data according to predefined criteria.
Options- A. True
- B. False Discuss
- 3. Both status data and event data can be stored in a database.
Options- A. True
- B. False Discuss
- 4. Every key used to join the fact table with a dimensional table should be a surrogate key.
Options- A. True
- B. False Discuss
- 5. Data in the data warehouse are loaded and refreshed from operational systems.
Options- A. True
- B. False Discuss
- 6. Independent data marts are often created because an organization focuses on a series of short-term business objectives.
Options- A. True
- B. False Discuss
- 7. Static extract is used for ongoing warehouse maintenance.
Options- A. True
- B. False Discuss
- 8. Periodic data are data that are physically altered once added to the store.
Options- A. True
- B. False Discuss
- 9. Synchronization for pull replication is less disruptive and occurs only when needed by each site, not when a central master site thinks it is best to update.
Options- A. True
- B. False Discuss
- 10. Databases that are stored on computers at multiple locations and are not interconnected by a network are known as distributed databases.
Options- A. True
- B. False Discuss
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