1. A foreign key is used to implement relationships between tables.

A. True
B. False

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2. The terms alternate key and candidate key means the same thing.

A. True
B. False

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3. In 1:N relationships, which entity becomes the parent entity is arbitrary.

A. True
B. False

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4. When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited.

A. True
B. False

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5. In a 1:1 relationship, the primary key placement is arbitrary.

A. True
B. False

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