Exam 9: Designing Databases

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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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When modeling a many-to-many unary relationship, the primary key of the relation representing the relationship is always singular.

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Sequence diagrams represent dynamic models of how objects change their states in response to events.

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Discuss the rules for normalization.

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The three phases associated with the Planning game include:

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The creation of a separate relation is sometimes required to represent a relationship.

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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.

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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 class that can have direct instances best defines:

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A default value is a value a field will assume unless an explicit value is entered for that field.

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During the Iteration Planning Game's steering phase:

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Two different names used for the same attribute is called a synonym.

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At the end of eXtreme Programming's coding phase, all code written to that point is tested.

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What is meant by Agile Methodologies? Identify the three key principles that the Agile Methodologies share.

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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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Sequential files are practical for random row retrievals.

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For a binary many-to-many relationship existing between entity types A and B:

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On a use-case diagram, use cases are shown as:

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An entity whose primary key depends on the primary key of another entity is called a:

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