Because of the various problems with operational data large organizations

Because of the various problems with operational data

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7) Because of the various problems with operational data, large organizations choose to extract operational data and typically create and staff a group of people who manage and run a(n) ________.A) OLAP cubeB) neural networkC) data warehouseD) Web serverAnswer: CAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 38) ________ records the source, format, assumptions and constraints, and other facts about the data.DAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 39) Problematic operational data are termed ________.CAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 310) ________ is a term that refers to the level of detail represented by the data.AAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 311) Which of the following statements is true about operational data? 11
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A) It is always better to have data with too coarse a granularity than with too fine a granularity. B) If the data granularity is too coarse, the data can be made finer by summing and combining.C) Purchased operational data often contains missing elements.D) Problematic operational data are termed rough data.Answer: CAACSB: Information TechnologyDifficulty: ModerateCourse LO: Compare and contrast different business intelligence systemsChapter LO: 312) Due to a phenomenon called the ________, the more attributes there are, the easier it is to build a model that fits the sample data but that is worthless as a predictor.BAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 313) A ________ takes data from the data manufacturers, cleans and processes the data, and locates the data on the shelves.CAACSB: Information TechnologyDifficulty: EasyCourse LO: Compare and contrast different business intelligence systemsChapter LO: 3
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