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- Question
An operational system is which of the following?
Options- A. A system that is used to run the business in real time and is based on historical data.
- B. A system that is used to run the business in real time and is based on current data.
- C. A system that is used to support decision making and is based on current data.
- D. A system that is used to support decision making and is based on historical data.
- Correct Answer
- A system that is used to run the business in real time and is based on current data.
- 1. Fact tables are which of the following?
Options- A. Completely denoralized
- B. Partially denoralized
- C. Completely normalized
- D. Partially normalized Discuss
- 2. A snowflake schema is which of the following types of tables?
Options- A. Fact
- B. Dimension
- C. Helper
- D. All of the above Discuss
- 3. Which of the following items are not necessary for client/server?
Options- A. Assure that tools will connect with middleware.
- B. Understand the requirements.
- C. Determine network bandwidth capabilities.
- D. Include the use of a file server. Discuss
- 4. Which of the following statements is true about symmetric multiprocessing?
Options- A. A single copy of the operating system resides in each processor.
- B. Useful for situations where data must remain in memory to process.
- C. Bottlenecks increase with uniprocessor systems because tasks are not shared.
- D. The problems of memory contention are unlikely. Discuss
- 5. Which of the following is true concerning QBE?
Options- A. An official standard has been defined for QBE.
- B. QBE cannot be used for client/server systems.
- C. QBE does not give the programmer a visual programming environment.
- D. Complete applications can be written using QBE. Discuss
- 6. The @active data warehouse architecture includes which of the following?
Options- A. At least one data mart
- B. Data that can extracted from numerous internal and external sources
- C. Near real-time updates
- D. All of the above. Discuss
- 7. A goal of data mining includes which of the following?
Options- A. To explain some observed event or condition
- B. To confirm that data exists
- C. To analyze data for expected relationships
- D. To create a new data warehouse Discuss
- 8. The extract process is which of the following?
Options- A. Capturing all of the data contained in various operational systems
- B. Capturing a subset of the data contained in various operational systems
- C. Capturing all of the data contained in various decision support systems
- D. Capturing a subset of the data contained in various decision support systems Discuss
- 9. A data warehouse is which of the following?
Options- A. Can be updated by end users.
- B. Contains numerous naming conventions and formats.
- C. Organized around important subject areas.
- D. Contains only current data. Discuss
- 10. Data transformation includes which of the following?
Options- A. A process to change data from a detailed level to a summary level
- B. A process to change data from a summary level to a detailed level
- C. Joining data from one source into various sources of data
- D. Separating data from one source into various sources of data Discuss
Data Warehousing problems
Search Results
Correct Answer: Completely normalized
Correct Answer: All of the above
Correct Answer: Include the use of a file server.
Correct Answer: Useful for situations where data must remain in memory to process.
Correct Answer: Complete applications can be written using QBE.
Correct Answer: All of the above.
Correct Answer: To explain some observed event or condition
Correct Answer: Capturing a subset of the data contained in various operational systems
Correct Answer: Organized around important subject areas.
Correct Answer: A process to change data from a detailed level to a summary level
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