Discussion
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- Question
Periodic data are data that are physically altered once added to the store.
Options- A. True
- B. False
- Correct Answer
- False
- 1. Static extract is used for ongoing warehouse maintenance.
Options- A. True
- B. False Discuss
- 2. Independent data marts are often created because an organization focuses on a series of short-term business objectives.
Options- A. True
- B. False Discuss
- 3. Data scrubbing can help upgrade data quality; it is not a long-term solution to the data quality problem.
Options- A. True
- B. False Discuss
- 4. Most operational systems are based on the use of transient data.
Options- A. True
- B. False Discuss
- 5. Joining is the process of partitioning data according to predefined criteria.
Options- A. True
- B. False Discuss
- 6. 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
- 7. 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
- 8. A distributed unit of work allows various statements within a unit of work to refer to multiple remote DBMS locations.
Options- A. True
- B. False Discuss
- 9. The purpose of timestamping is to avoid the use of locks.
Options- A. True
- B. False Discuss
- 10. The problem of concurrency control is more complex in a distributed database.
Options- A. True
- B. False Discuss
Data Warehousing problems
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Correct Answer: True
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