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What is a characteristic of a table?


A) field
B) table
C) record
D) key

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

Correct Answer

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What is a statement that defines an aspect of a business?


A) attribute
B) entity
C) business relational diagram
D) business rule

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

Correct Answer

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Which of the following is a possible business rule?


A) a customer can purchase many DVDs
B) DVDs can be purchased by many customers
C) a DVD title can have many copies
D) All of these are correct.

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

Correct Answer

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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 is a primary key?


A) a field that uniquely identifies a given record in a table
B) a primary key of one table that appears as an attribute in another table and acts to provide a logical relationship between the two tables
C) a table that uniquely identifies a given record in a field
D) a foreign key of one table that appears as an entity in another table and acts to provide a logical relationship between the two records

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

Correct Answer

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What kind of attribute would be age?


A) null-valued attribute
B) multivalued attribute
C) derived attribute
D) stored attribute

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

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) multivalued attribute
C) derived attribute
D) null-valued attribute

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

Correct Answer

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