Exam 8: Accessing Organizational Information Data Warehouse

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What is a dimension?

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What is information that people use to support their decision-making efforts?

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The primary purpose of a data warehouse is to perform transactional processes.

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Explain the primary difference between a database and a data warehouse.

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Which of the following is not one of the principal BI enablers?

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What do data warehouses support?

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Data information in a data warehouse contains layers of columns and rows,and this is known as __________ databases.

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Lands' End created an organization-wide data warehouse so all its employees could access organizational information.Lands' End soon found out that there could be "too much of a good thing." Many of its employees would not use the data warehouse,because it was simply too big,too complicated,and had too much irrelevant information.Lands' End knew there was valuable information in its data warehouse,and it had to find a way for its employees to easily access the information.What was Lands' End's solution?

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The Data Warehousing Institute estimates that low-quality information costs U.S.businesses $60 billion annually.

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A(n)__________ is a particular attribute of information.

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Which of the following does not draw a parallel between the challenges in business and the challenges of war?

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Data _________ is the process of analyzing data to extract information not offered by the raw data alone.

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A(n)___________ is the common term for the representation of multidimensional information.

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Why would a business use a data warehouse that offers strategic level,external,integrated,and historical information?

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Extraction,transformation,and loading is a process that extracts information from internal databases,transforms the information using a common set of enterprise definitions,and loads the information into an external database.

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A dimension is a particular attribute of information.Each layer in a data warehouse or data mart represents information according to an additional dimension.What is the common term for the representation of multidimensional information?

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A relational database contains information in a series of two-dimensional tables.How is data contained in a data warehouse and data mart?

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Which of the following statements is true regarding customer information?

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Identify the importance of ensuring the cleanliness of information throughout an organization.

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A data warehouse is a _________ collection of information-gathered from many different ___________ databases-that supports business-analysis activities and decision-making tasks.

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