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In terms of big data what includes the uncertainty of data, including biases, noise, and abnormalities?


A) Variety
B) Veracity
C) Volume
D) Velocity

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

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In which ways does a data warehouse enable business users to be more effective?


A) Analyzing trends.
B) Identifying financial issues.
C) Understanding competitors.
D) All of the above.

E) C) and D)
F) None of the above

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What is web analytics?


A) Unstructured data associated with websites to identify consumer behavior and website navigation
B) Analyzes structured data associated with a website
C) Filters information, both structured and unstructured, to help identify strong web customers
D) None of the above

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

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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) None of the above
F) A) and D)

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Volume includes the scale of data.

A) True
B) False

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A data lake is a storage repository that holds a vast amount of raw data in its original format until the business needs it.

A) True
B) False

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Data stewardship is the management and oversight of an organization's data assets to help provide business users with high-quality data that is easily accessible in a consistent manner.

A) True
B) False

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Identify the business advantages of a relational database.

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Many business managers are familiar with...

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What compiles all of the metadata about the data elements in the data model?


A) Data entity
B) Data element
C) Data attribute
D) Data dictionary

E) None of the above
F) All of the above

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Which of the following represents a reason for low-quality information?


A) Online customers intentionally enter inaccurate information to protect the privacy
B) Different systems have different information entry standards and formats
C) Third-party and external information contains inaccuracies and errors
D) All of the above

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

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Your textbook discussed a record store example where one user could perform a query to determine which recordings had a track length of four minutes or more, and another user could perform an analysis to determine the distribution of recordings as they relate to the different categories. This is an advantage of which database example?


A) Increased scalability and performance
B) Increased information security
C) Reduced information redundancy
D) Increased flexibility

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

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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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Data models are logical data structures that detail the relationships among data elements by using graphics or pictures.

A) True
B) False

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Within the data warehouse model, the external databases could include competitor information, industry information and stock market analysis.

A) True
B) False

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Define data mining, and explain the three common forms for mining structured and unstructured data.

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Data mining is the process of analyzing ...

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Regression is a prediction based on time-series information.

A) True
B) False

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

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Most people request real-time information without understanding that continual ________ is one of its biggest pitfalls.


A) Improvements
B) Change
C) Clustering
D) Cleansing

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

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According to Gartner Inc., dirty data is an MIS problem, not a business problem.

A) True
B) False

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What is the process of analyzing recorded calls to gather information; brings structure to customer interactions and exposes information buried in customer contact center interactions with an enterprise?


A) Social media analytics
B) Speech analytics
C) Text analytics
D) Web analytics

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

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