Exam 3: Data and Business Intelligence

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In comparison with flat file systems, databases:

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_____  tools are capable of "drilling up," proceeding from the smallest unit of data to higher levels.

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Conventional computing methods are able to efficiently process and manage big data.

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In a relational database model, which operation pares down a table by eliminating columns according to certain criteria?

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The _____ dimension of big data refers to the sheer quantity of transactions, measured in petabytes or exabytes.

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The use of the OR operator in a query form, when using query by example (QBE), means that all conditions must be met.

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In the context of business analytics, prescriptive analytics recommends a precise course of action that a decision maker should follow and shows the likely outcome of each decision.

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The _____ method for accessing files is effective when a large number of records are processed less frequently, perhaps on a quarterly or yearly basis.

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List and describe the features of data in a data warehouse in contrast to data in a database.

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Consolidating information from different departments or functional areas is easier in data marts than in data warehouses.

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_____ is a component of a data model that defines the boundaries of a database, such as maximum and minimum values allowed for a field, constraints, and access methods.

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Briefly explain the role of business analytics (BA)in decision making and compare it to business intelligence (BI).

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In a relational database model, a _____ is a field in a relational table that matches the primary key column of another table.

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In the context of the data administration component of a database management system (DBMS), the acronym CRUD stands for _____.

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For each database, there:

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Discuss the advantages of a database over a flat file system.

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A _____  converts logical requests from users into their physical equivalents by interacting with other components of the database management system (DBMS).

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Database marketing works by using multivariate analysis, data segmentation, and automated tools to transform marketing from a proactive to a reactive process.

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Unlike data in databases, data in data warehouses is:

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Which statement is true of big data?

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