Exam 5: Database Systems, Data Centers, and Business Intelligence

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Predictive analysis is a form of data mining that combines historical data with assumptions about future conditions to predict the outcome of events.

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A(n) _____ contains a subset of data for a single aspect of a company's business and are used by smaller groups who want to access detailed data for business analysis.

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Without a well-designed, accurate ______, executives, managers, and others do not have access to the information they need to make good decisions.

(Short Answer)
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The DBMS serves as an interface between an application program and the database.

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A form of database that holds a duplicate set of frequently used data and that helps reduce telecommunications costs.

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As data centers continue to expand in terms of the quantity of data that they store and process, their ______ demands are increasing.

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A database scientist is a skilled and trained IS professional who directs all activities related to an organization's database, including providing security from intruders.

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The purpose of _____ is to develop data that is accurate, complete, economical, flexible, reliable, relevant, simple, timely, verifiable, accessible, and secure.

(Short Answer)
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Due to their size, databases must be stored on mainframe computers or other large, powerful computers.

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Business and technology vendors are working to develop blue data centers that run more efficiently and require less energy for processing and cooling.

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Briefly describe the relational data model.

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A database _____.

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The data _____ is a detailed description of all data used in the database.

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Traditional data centers consist of warehouses filled with row upon row of ______ racks and powerful cooling systems to compensate for the heat generated by the processors.

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Together, bits, characteristics, fields, records, files, and databases form the ______.

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______ is a form of database processing that supports top-down, query-driven data analysis.

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In the relational model, each row of a table represents a data entity or row and each column of the table represents an attribute or field.

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_____ control can be used to avoid potential problems when two or more users attempt to access the same record at the same time.

(Short Answer)
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Projecting involves eliminating columns in a table.

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Today, few organizations use the database approach to data management, where multiple information systems share a pool of related data.

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