Which of the Following Is the Correct Technique for Representing

question 55

Multiple Choice

Which of the following is the correct technique for representing a M:N relationship using the relational model?

• A) An intersection relation is created, and the key of either entity is placed as a key in both the intersection relation and in the other relation.
• B) An intersection relation is created with a surrogate key, which is placed in each of the parent entities.
• C) An intersection relation is created, and the keys of both parent entities are placed as a composite key in the intersection relation.
• D) The key from either relation is placed as a foreign key in the other relation.
• E) None of the above

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Definitions:

Substitution Effect

The substitution effect occurs when consumers replace pricier goods with cheaper alternatives as prices change, reflecting changes in consumption patterns due to relative price differences.

Diminishing Marginal Utility

The principle that as a person consumes more of a good, the additional satisfaction gained from consuming an additional unit of the good decreases.

Limited Budget

A financial plan that is constrained by a limited amount of resources, requiring prioritization and careful management.

Utility Maximization

The economic principle whereby individuals or firms seek to allocate their resources in a way that maximizes their satisfaction or utility.