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Business critical integrity constraints enforce business rules vital to an organization's success and often require more insight and knowledge than relational integrity constraints.

A) True
B) False

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Which of the following are examples of transactional information?


A) airline ticket, sales receipts, and packing slips
B) trends and sales statistics
C) product sales results, grocery receipts, and growth projections
D) airline tickets and sales growth spreadsheets

E) All of the above
F) B) and D)

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What is a foreign key?


A) a field (or group of fields) that uniquely identifies a given entity in a table
B) a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship among the two tables
C) characteristics or properties of an entity
D) a field (or group of fields) that uniquely identifies a given attribute in a table

E) All of the above
F) A) and D)

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Velocity includes different forms of structured and unstructured data.

A) True
B) False

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What is classification?


A) determines values for an unknown continuous variable behavior or estimated future value
B) determines which things go together
C) segments a heterogeneous population of more homogeneous subgroups
D) assigns records to one of a predefined set of classes

E) None of the above
F) A) and B)

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Which of the following occurs during data cleansing?


A) clean missing records
B) clean redundant records
C) clean inaccurate data
D) All of these are correct.

E) A) and B)
F) A) and C)

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Which of the following is a business-critical integrity constraint?


A) System will not allow an entry for an order for a nonexistent customer.
B) System will not allow returns of fresh produce after 15 days past delivery.
C) System will not allow shipping a product to a customer who does not have a valid address.
D) system will not allow shipping of a nonexistent product to a customer.

E) A) and D)
F) All of the above

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Define a data warehouse, and provide a few reasons it can make a manager more effective.

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A data warehouse is a logical collection...

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Which of the following represents the different information granularities?


A) detail, summary, aggregate
B) document, presentation, spreadsheet, database
C) individual, department, enterprise
D) executives, managers, operational employees

E) C) and D)
F) A) and B)

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What is a real-time system?


A) provides immediate, up-to-date information
B) provides real-time information in response to query requests
C) encompasses all organization information, and its primary purpose is to support the performing of managerial analysis tasks
D) encompasses all of the information contained within a single business process or unit of work, and its primary purpose is to support the performing of daily operational tasks

E) A) and D)
F) A) and C)

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Big data is a collection of large, complex data sets, including structured and unstructured data, which cannot be analyzed using traditional database methods and tools.

A) True
B) False

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Human-generated unstructured data includes text messages, social media data, and emails.

A) True
B) False

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What is optimization?


A) a statement about what will happen or might happen in the future; for example, predicting future sales or employee turnover
B) a statistical process that finds the way to make a design, system, or decision as effective as possible; for example, finding the values of controllable variables that determine maximal productivity or minimal waste
C) predictions based on time-series information
D) a statistical process for estimating the relationships among variables

E) A) and C)
F) B) and C)

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Machine-generated data is data that humans, in interaction with computers, generate.Human-generated structured data includes input data, click-stream data, or gaming data.

A) True
B) False

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What is it called when each transaction, entity, and event is represented only once in the information?


A) uniqueness
B) accuracy
C) consistency
D) timeliness

E) A) and B)
F) All of the above

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A foreign key is a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables.

A) True
B) False

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Relational integrity constraints are rules that enforce basic and fundamental information-based constraints.

A) True
B) False

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How would the retail industry use business intelligence?


A) track crime patterns, locations, and criminal behavior
B) analyze customer demographics
C) predict sales, inventory levels, and distribution
D) predict hardware failures

E) A) and B)
F) C) and D)

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Data warehouses struggle with combining too much standardized information.

A) True
B) False

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Velocity includes the analysis of streaming data as it travels around the Internet.

A) True
B) False

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