A Foreign Key in a Relation That References the Primary

question 104

Multiple Choice

A foreign key in a relation that references the primary key values of that same relation is referred to as a:

• A) secondary key.
• B) recursive foreign key.
• C) composite key.
• D) complex key.
• E) concatenated key.

---

Definitions:

Density

The mass per unit volume of a substance, indicating how much matter is packed into a particular space.

Volume

A measurement of the three-dimensional space occupied by an object or a substance.

Precise

Refers to the closeness of two or more measurements to each other, indicating consistency regardless of accuracy.