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MCQs

Total Questions : 64 | Page 3 of 7 pages
Question 21. Data Mining uses simple arithmetic techniques such as sums, averages, and groupings to perform what-if analyses, to make predictions, and to facilitate decision making.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 22. Business Intelligence (BI) systems fall into two broad categories: reporting and data warehousing.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 23. Most operational databases can be used for many BI applications.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 24. A data warehouse is a database system that is optimized for operational transaction processing.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 25. The data warehouse DBMS needs to be the same DBMS used for the operational database.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 26. RFM analysis is a BI reporting system.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 27. In a common form of RFM analysis, customers are sorted in five groups and given a score of 1 to 5 depending on their group.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 28. Report types include static, dynamic, query and OLAP.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True
Question 29. OLAP uses measures, dimensions and associations.
  1.    True
  2.    False
 Discuss Question
Answer: Option B. -> False
Question 30. In unsupervised data mining, explanations are created after patterns are found.
  1.    True
  2.    False
 Discuss Question
Answer: Option A. -> True

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