Answer: FALSE 28) Data mining is the application of statistical techniques to find patterns and relationships among data for classification and prediction. Answer: TRUE 29) Knowledge discovery in databases (KDD) is used as a synonym for data mining. Answer: TRUE 30) With unsupervised data mining, analysts do not create a model or hypothesis before running the analysis. Answer: TRUE 2
31) Cluster analysis is used to identify groups of entities that have similar characteristics. Answer: TRUE 32) In supervised data mining, a model is developed after the analysis. Answer: FALSE 33) Regression analysis measures the effect of a set of variables on another variable. Answer: TRUE 34) Neural networks are a popular unsupervised data mining technique used to predict values and make classifications. Answer: FALSE 35) In marketing transactions, the fact that customers who buy product X also buy product Y creates a cross- selling opportunity. Answer: TRUE 36) In market-basket terminology, confidence is the probability that two items will be purchased together. Answer: FALSE 37) In market-basket terminology, a conditional probability estimate is called lift. Answer: FALSE 38) A decision tree analysis is a supervised data mining technique. Answer: FALSE 39) A common business application of decision trees is to classify loans by likelihood of default. Answer: TRUE 40) MapReduce is a technique for harnessing the power of thousands of computers working in parallel. Answer: TRUE 41) Hadoop is an open-source program supported by the Apache Foundation4 that implements MapReduce on potentially thousands of computers. Answer: TRUE 42) Knowledge management was done only after the advent of social media. Answer: FALSE 43) Knowledge management is the process of creating value from intellectual capital and sharing it with those who need it. Answer: TRUE 44) Expert systems are rule-based systems that encode human knowledge in the form of "If/ Then" rules. Answer: TRUE 45) In expert systems, the programs that process a set of rules are called expert systems shells. Answer: TRUE 46) Static reports are BI documents that are fixed at the time of creation and do not change. Answer: TRUE 3
47) Dynamic reports are BI documents that are updated at the time they are requested. Answer: TRUE 48) A sales report that is current at the time the user accessed it on a Web server is a static report. Answer: FALSE 49) A BI server extends alert/RSS functionality to support user subscriptions. Answer: TRUE 50) All management data needed by any of the BI servers is stored in metadata. Answer: TRUE 1) ________ is defined as information containing patterns, relationships, and trends of various forms of data. C) Business intelligence 2) Which of the following is true of source data for a BI system? B) It refers to data that the organization purchases from data vendors. 3) ________ is the process of obtaining, cleaning, organizing, relating, and cataloging source data. B) Data acquisition 4) Which of the following is a fundamental category of BI analysis? D) data mining 5) Push publishing delivers business intelligence ________. A) according to a schedule or as a result of an event or particular data condition 6) ________ requires the user to request BI results.
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- Spring '16
- Business, Data Mining