Exam 9: Designing Databases
Exam 1: The Systems Development Environment106 Questions
Exam 2: The Sources of Software100 Questions
Exam 3: Managing the Information Systems Project94 Questions
Exam 4: Systems Planning and Selection94 Questions
Exam 5: Determining System Requirements104 Questions
Exam 6: Structuring System Requirements: Process Modeling104 Questions
Exam 7: Structuring System Requirements: Conceptual Data Modeling102 Questions
Exam 8: Designing the Human Interface105 Questions
Exam 9: Designing Databases311 Questions
Exam 10: Systems Implementation and Operation105 Questions
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If OrderNumber serves as the primary key in the ORDER relation and also appears as a nonkey attribute in the INVOICE relation, then OrderNumber is said to be a:
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Correct Answer:
A
When modeling a many-to-many unary relationship, the primary key of the relation representing the relationship is always singular.
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(True/False)
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Correct Answer:
False
Sequence diagrams represent dynamic models of how objects change their states in response to events.
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(True/False)
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Correct Answer:
False
The creation of a separate relation is sometimes required to represent a relationship.
(True/False)
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A relation is said to be in second normal form if the primary key consists of a combination key, and the nonkey attributes are partially dependent on the primary key.
(True/False)
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An Agile Methodology is recommended for each of the following EXCEPT:
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On a use-case diagram, the type of relationship that arises when one use case references another use case is called a(n):
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A default value is a value a field will assume unless an explicit value is entered for that field.
(True/False)
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Two different names used for the same attribute is called a synonym.
(True/False)
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At the end of eXtreme Programming's coding phase, all code written to that point is tested.
(True/False)
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What is meant by Agile Methodologies? Identify the three key principles that the Agile Methodologies share.
(Essay)
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In the Planning Game, which of the following refers to the individuals who are actually designing and constructing the system?
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For a binary many-to-many relationship existing between entity types A and B:
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An entity whose primary key depends on the primary key of another entity is called a:
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