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Exam 6: Data: Business Intelligence

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Question 141

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What is data governance?

A) occurs when the same data element has different values
B) occurs when a system produces incorrect, inconsistent, or duplicate data
C) refers to the overall management of the availability, usability, integrity, and security of company data
D) the practice of gathering data and ensuring that it is uniform, accurate, consistent, and complete, including such entities as customers, suppliers, products, sales, employees, and other critical entities that are commonly integrated across organizational systems

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

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Question 142

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Time-series information is time-stamped information collected at a particular frequency.

A) True
B) False

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Question 143

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Which of the following is a problem associated with dirty data?

A content editor is the person responsible for updating and maintaining website content.

What assigns records to one of a predefined set of classes?

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

Which of the following are examples of analytical information?

A record is a collection of related data elements.

Association detection is a technique used to divide information sets into mutually exclusive groups such that the members of each group are as close together as possible to one another and the different groups are as far apart as possible.

Duplicate data, inaccurate data, misleading data, and incorrect data are all problems associated with dirty data.

A DBMS provides details about data.

What is the primary difference between an entity and an attribute?

Association detection reveals the relationship between variables along with the nature and frequency of the relationship.

A data mart is the process of analyzing data to extract information not offered by the raw data alone.

Describe a database, a database management system, and the relational database model.

What is it called when a manager has so much data and information that he or she cannot make a decision?

Affinity grouping determine which things go together.

Data-driven websites offer several advantages as it is far easier to manage content and store large amounts of data.

Data visualization tools move beyond Excel graphs and charts into sophisticated analysis techniques such as pie charts, controls, instruments, maps, time-series graphs, and more.

What extracts knowledge from data by performing statistical analysis, data mining, and advanced analytics on big data to identify trends, market changes, and other relevant information?