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Modern Database Management, Ninth Edition 9 Chapter 12 Data Quality and Integration MULTIPLE CHOICE: Choose the one alternative that best completes the statement or answers the question. 1. High quality data are data that are A) Accurate B) Consistent C) Available in a timely fashion D) All of the above Answer: D Level: Easy Page Ref: 524 Topic: Managing Quality Data AACSB Use of Information Technology, Analytic Skills 2. Data quality ROI stands for: A) Return on investment B) Risk of incarceration C) Rough outline inclusion D) None of the above Answer: B Level: Easy Page Ref: 524 Topic: Managing Quality Data AACSB Use of Information Technology, Analytic Skills 3. Data quality is important for all of the following reasons except: A) It minimizes project delay B) It aids in making timely business decisions C) It provides a stream of profit D) It helps to expand the customer base Answer: C Level: Moderate Page Ref: 524 Topic: Managing Quality Data AACSB Use of Information Technology Copyright 2009 Pearson Education, Inc. Publishing as Prentice Hall 10 Data Quality and Integration Chapter 12 4. Quality data can be defined as being: A) Unique B) Inaccurate C) Historical D) Precise Answer: A Level: Easy Page Ref: 524-525 Topic: Managing Quality Data AACSB Use of Information Technology 5. Conformance means that A) Data have been transformed B) Data are stored, exchanged or presented in a format that is specified by its metadata. C) Data are stored in a way to expedite retrieval. D) None of the above. Answer: B Level: Easy Page Ref: 525 Topic: Managing Quality Data AACSB Use of Information Technology 6. One characteristic of quality data which pertains to the expectation for the time between when data are expected and when they are available for use is: A) Currency B) Consistency C) Referential Integrity D) Timeliness Answer: D Level: Easy Page Ref: 525 Topic: Managing Quality Data AACSB Use of Information Technology 7. Experts estimate that ________________ data warehousing projects fail because users reject the data as unreliable. A) All B) Half of C) No D) Seventy percent of Answer: D Level: Easy Page Ref: 526 Topic: Managing Quality Data Sub-Topic: The State of Data Quality AACSB Use of Information Technology Copyright 2009 Pearson Education, Inc. Publishing as Prentice Hall Modern Database Management, Ninth Edition 11 8. External data sources present problems for data quality because: A) Data are not always available. B) There is a lack of control over data quality C) There are poor data capture controls. D) Data are unformatted. Answer: B Level: Easy Page Ref: 526 Topic: Managing Quality Data Sub-topic: The State of Data Quality AACSB Use of Information Technology 9. Data quality problems can cascade when A) Data are not deleted properly.... View Full Document

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