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Chapter 13(T/F)

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asdf Quiz on Chapter 13(T/F), created by . . on 09/12/2016.
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Quiz by . ., updated more than 1 year ago
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Created by . . almost 10 years ago
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Resource summary

Question 1

Question
1.BI is a framework that allows a business to transform data into information, information into knowledge, and knowledge into wisdom.
Answer
  • True
  • False

Question 2

Question
2.Monitoring results to evaluate outcomes of the business decisions is outside the scope of BI.
Answer
  • True
  • False

Question 3

Question
3.The BI architecture is composed of data, people, processes, technology, and the management of such components.
Answer
  • True
  • False

Question 4

Question
4.A data store is used by the data analyst to create the queries that access the database.
Answer
  • True
  • False

Question 5

Question
5.MDM’s main goal is to provide a partial and segmented definition of all data within an organization.
Answer
  • True
  • False

Question 6

Question
6.SAP is a portal vendor.
Answer
  • True
  • False

Question 7

Question
7. To tie a KPI to the strategic master plan of an organization, a KPI will be compared to a desired goal within a specific time frame.
Answer
  • True
  • False

Question 8

Question
8.Operational data and decision support data serve the same purpose.
Answer
  • True
  • False

Question 9

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9.Decision support data are a snapshot of the operational data at a given point in time
Answer
  • True
  • False

Question 10

Question
10.Queries against operational data typically are broad in scope and high in complexity.
Answer
  • True
  • False

Question 11

Question
11.The decision support database query optimizer must be enhanced to support non-normalized structures.
Answer
  • True
  • False

Question 12

Question
12.Data warehouse data are organized and summarized by table, such as CUSTOMER and ADDRESS.
Answer
  • True
  • False

Question 13

Question
13.Once data enter the data warehouse, they are never removed.
Answer
  • True
  • False

Question 14

Question
14.Creating a data warehouse is a simple exercise that takes little time, money, or effort.
Answer
  • True
  • False

Question 15

Question
15.The data warehouse development life cycle differs from classical systems development.
Answer
  • True
  • False

Question 16

Question
16.Facts can be computed or derived at run time.
Answer
  • True
  • False

Question 17

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17.The data warehouse designer must define common business dimensions that will be used by the data analyst to narrow a search, group information, or describe attributes.
Answer
  • True
  • False

Question 18

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18.Data warehouses usually have one fact table
Answer
  • True
  • False

Question 19

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19.Normalizing fact tables improves data access performance and saves data storage space.
Answer
  • True
  • False

Question 20

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20.Periodicity, usually expressed as current year only, previous years, or all years, provides information about the time span of the data stored in the table.
Answer
  • True
  • False

Question 21

Question
21.It is a relatively easy task to provide a precise list of characteristics of data-mining tools.
Answer
  • True
  • False

Question 22

Question
22.In the prognosis phase, the data-mining findings are used to predict future behavior and forecast business outcomes
Answer
  • True
  • False

Question 23

Question
23.Multidimensional data analysis techniques include advanced computational functions.
Answer
  • True
  • False

Question 24

Question
24.The mainframe environment enables an OLAP system to be divided into several components that define its architecture.
Answer
  • True
  • False

Question 25

Question
25.In most implementations, the data warehouse and OLAP are stand-alone, independent environments.
Answer
  • True
  • False

Question 26

Question
26.To provide better performance, some OLAP systems merge the data warehouse and data mart approaches by storing small extracts of the data warehouse at end-user workstations.
Answer
  • True
  • False

Question 27

Question
27.The star schema is designed to optimize data query operations rather than data update operations.
Answer
  • True
  • False

Question 28

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28.MOLAP is a logical choice for companies that already use relational databases for their operational data.
Answer
  • True
  • False

Question 29

Question
29.Because a data cube’s dimensions are predefined, all cells are populated.
Answer
  • True
  • False

Question 30

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30.ROLAP and MOLAP vendors are working toward the integration of their respective solutions within a unified decision support framework.
Answer
  • True
  • False
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