22. Which of the below represents a reason why data warehouses were created? a.

Question

22. Which of the below represents a reason why data warehouses were created? a. Numbers and types of operational databases increased as businesses grew b. Many companies had information scattered across multiple systems with different formats c. Completing reporting requests from numerous operational systems d. days or weeks All of the above 23. What is data mining? a. The common term for the representation of multidimensional information b. A particular attribute of information c. Uses a variety of techniques to find patterns and relationships in large volumes of information and infer rules from them that predict future behavior and guide decision making Process of analyzing data to extract information not offered by the raw data alone d. 24. What are the primary differences between a data warehouse and a data mart? a. Data warehouses make quick decisions, data marts make slow decisions b. Data warehouse tackle ethical ssues, data marts tackle hypothetical ssues c. Data warehouses have a more organization-wide focus, data marts have functional focus d. Data warehouses have a physical focus, data marts have bgical focus 25. What enables telecommunications or the exchange of information voice, text, data, audio, and vdeo)? a. Computer networks b. Email C. HTML d. Technologysourcing 26. What connects a group of computers inclose proximty, such as ina school or office setting? a. b. c. d. Metropolitan area network (MAN) Local area network (LAN) Wide Area Network (WAN) Secure area network (SAN)

Explanation / Answer

22. d. All of the above

23. c. Process of findig patternas in data sets

24. c. Data ware house is organization oriented

25. a. Computer networks

26. b. LAN

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