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Exam 8: Accessing Organizational Information Data Warehouse

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Question 1

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Why would a business use a data warehouse that offers strategic level,external,integrated,and historical information?

A) Identify trends.
B) Make projections.
C) Decide key business issues.
D) All of these.

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

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Question 2

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Which of the following does not draw a parallel between the challenges in business and the challenges of war?

A) Collecting information.
B) Discerning patterns and meaning in the information.
C) Accurate and complete information.
D) Responding to the resultant information.

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

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Question 3

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A data warehouse is a _________ collection of information-gathered from many different ___________ databases-that supports business-analysis activities and decision-making tasks.

The Data Warehousing Institute estimates that low-quality information costs U.S.businesses $60 billion annually.

Data _________ is the process of analyzing data to extract information not offered by the raw data alone.

Which of the following statements is true regarding customer information?

A relational database contains information in a series of two-dimensional tables.How is data contained in a data warehouse and data mart?

Lands' End created an organization-wide data warehouse so all its employees could access organizational information.Lands' End soon found out that there could be "too much of a good thing." Many of its employees would not use the data warehouse,because it was simply too big,too complicated,and had too much irrelevant information.Lands' End knew there was valuable information in its data warehouse,and it had to find a way for its employees to easily access the information.What was Lands' End's solution?

Which of the following is not one of the principal BI enablers?

The primary purpose of a data warehouse is to perform transactional processes.

What is information that people use to support their decision-making efforts?

A dimension is a particular attribute of information.Each layer in a data warehouse or data mart represents information according to an additional dimension.What is the common term for the representation of multidimensional information?

What do data warehouses support?

What is a dimension?

Identify the importance of ensuring the cleanliness of information throughout an organization.

Data information in a data warehouse contains layers of columns and rows,and this is known as __________ databases.

A(n)___________ is the common term for the representation of multidimensional information.

Extraction,transformation,and loading is a process that extracts information from internal databases,transforms the information using a common set of enterprise definitions,and loads the information into an external database.

A(n)__________ is a particular attribute of information.

Explain the primary difference between a database and a data warehouse.