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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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Explain the four primary traits that determine the value of information.

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•Information type-transactional or analy...

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All of the following are business-critical integrity constraints,except


A) System does not allow an entry for an order for a non-existent customer
B) System does not allow returns of fresh produce after 15 days past delivery
C) System does not allow shipping a product to a customer who does not have a valid address
D) Systems does not allow shipping of a non-existent product to a customer

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

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Which of the following is true in regards to the elimination of redundant data?


A) Uses additional hard disk space
B) Makes performing information updates harder
C) Improves information quality
D) All the answers are correct

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

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Data-mining tools use a variety of techniques to find patterns and relationships in large volumes of information that predict future behaviour and guide decision making.

A) True
B) False

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Explain enterprise application integration.

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Enterprise application integration (EAI)...

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What are rules that enforce basic and fundamental information-based constraints?


A) Information integrity
B) Integrity constraint
C) Business-critical integrity constraint
D) Relational integrity constraint

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

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Which of the below is not an example of an advantage of using a relational database?


A) Increased information quality
B) Increased flexibility
C) Decreased information redundancy
D) Decreased information security

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

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What is a field that uniquely identifies a given record in a table?


A) Foreign key
B) Primary key
C) Data mining key
D) DBMS key

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

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Which of the following techniques performs such functions as information correlations,distributions,calculations and variance analysis?


A) Clustering objective analysis
B) Statistical analysis
C) Entity modelling
D) Market basket analysis

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

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What are the three common forms for mining structured and unstructured data?


A) Cluster analysis, association detection, statistical analysis
B) Cluster analysis, association detection, disassociation detection
C) Cluster analysis statistical detection, statistical analysis
D) Association detection, market-basket analysis, market-basket association

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

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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 analysing ...

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What 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?


A) Transactional information
B) Analytical information
C) Timeliness
D) Quality

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

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What is the primary tool that retrieves information and helps users graphically design the answer to a question?


A) Data mining tools
B) Structured example language
C) Query-by-example tool
D) Relational query tool

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

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If a manager identifies numerous data integrity issues he or she should consider the reports generated from that data as invalid and not use them when making decisions.

A) True
B) False

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Which of the following is not a common form of data mining?


A) Division organisation
B) Classification
C) Estimation
D) Clustering

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

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Why do relational databases use primary keys and foreign keys?


A) To create an entity
B) To create physical relationships
C) To create logical relationships
D) To create an attribute

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

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Enterprise systems are often available as a generic,but highly customisable,group of programs for business functions,but which function would not usually be included?


A) Inconsistent data definitions
B) Lack of data standards
C) Increased data quality
D) Inadequate data usefulness

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

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

A) True
B) False

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Data mining is the process of analysing data to find hidden patterns and discover new insights not offered by the raw ___________ alone.

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