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What has the potential to contain more than one value for an attribute?


A) Single-valued attribute
B) Multi-valued attribute
C) Null-valued attribute
D) All of the above

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

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A field is composed of rows and columns that represent an entity.

A) True
B) False

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What occurs between two entities in which an instance of one entity can be related to only one instance of a related entity?


A) One-to-one relationship
B) One-to-many relationship
C) Many-to-many relationship
D) Composite entity

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

Correct Answer

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What occurs when two entities can be related to each other in many instances?


A) One-to-one relationship
B) One-to-many relationship
C) Many-to-many relationship
D) Composite entity

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

Correct Answer

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Date of birth would be a stored attribute.

A) True
B) False

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A one-to-many relationship occurs between two entities in which an instance of one entity can be related to only one instance of a related entity.

A) True
B) False

Correct Answer

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What kind of attribute is assigned to an attribute when no other value applies or when a value is unknown?


A) Single-valued attribute
B) Multi-valued attribute
C) Derived attribute
D) Null-valued attribute

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

Correct Answer

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