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Modern Database Management Study Set 2
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Modern Database Management Study Set 2
Computing
Quiz 2 :
Modeling Data in the Organization
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Quiz 2 :
Modeling Data in the Organization
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The logical representation of an organization's data is called a(n):
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Q01
Answer:
Answer:
B
A good data definition will describe all of the characteristics of a data object EXCEPT:
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Multiple Choice
Q02
Answer:
Answer:
D
A fact is an association between two or more:
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Q03
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Answer:
B
Data modeling may be the most important part of the systems development process because:
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Q04
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The most common types of entities are:
Multiple Choice
Q05
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In an E-R diagram, there are/is ________ business rule(s) for every relationship.
Multiple Choice
Q06
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Business policies and rules govern all of the following EXCEPT:
Multiple Choice
Q07
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A ________ defines or constrains some aspect of the business.
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Q08
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Which of the following is NOT a characteristic of a good business rule?
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Q09
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Which of the following is NOT a good characteristic of a data name?
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Q10
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Customers, cars, and parts are examples of:
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Q11
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Which of the following is an entity that exists independently of other entity types?
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Q12
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An entity type whose existence depends on another entity type is called a ________ entity.
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Q13
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The following figure shows an example of:
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Q14
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A(n) ________ is the relationship between a weak entity type and its owner.
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Q15
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An entity type name should be all of the following EXCEPT:
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Q16
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A property or characteristic of an entity type that is of interest to the organization is called a(n):
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Q17
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An attribute that must be present for every entity (or relationship) instance is a(n):
Multiple Choice
Q18
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A person's name, birthday, and social security number are all examples of:
Multiple Choice
Q19
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An attribute of an entity that is computed is a(n):
Multiple Choice
Q20
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