For a Binary Many-To-Many Relationship Existing Between Entity Types a and B

question 111

Multiple Choice

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

• A)a separate relation C is created;the primary key of relation C is a composite key consisting of the primary key for each of the two entities in the relationship
• B)the primary keys of relation A and relation B are designated as functionally dependent attributes
• C)secondary keys are used to establish the relationship
• D)place the primary key of either entity in the relation for the other entity or do this for both entities

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Definitions:

Aggregate Supply

The aggregate amount of products and services that businesses within a country intend to offer for sale over a particular period.

Equilibrium Output

The level of output where the quantity demanded equals the quantity supplied in a market, leading to no pressure for change.

Price Level

A measure of the average prices of goods and services in an economy at a given time, often influencing inflation rates.

Long-run Equilibrium

A state in which economic forces such as supply and demand are balanced, occurring when the level of output is sustainable in the long term without creating inflation.