An REA Diagram Contains Five Instances of the Customer Entity

question 48

Multiple Choice

An REA diagram contains five instances of the Customer entity.How many tables does this require in a relational database?

• A)one
• B)two
• C)three
• D)four

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Definitions:

Nucleophilic Aromatic Substitution

A reaction where an electron-rich nucleophile displaces a leaving group attached to an aromatic ring.

1,2-Dibromo-4-Nitrobenzene

A compound containing a benzene ring substituted with two bromo groups and one nitro group, used in organic synthesis and chemical research.

NaOH

Sodium Hydroxide, a strong base used in various industrial and chemical processes.

Major Organic Product

The most abundant product formed during a chemical reaction involving organic compounds.