When Changing the Minimum Cardinality on the Parent Side of the Relationship

question 35

Multiple Choice

When changing the minimum cardinality on the parent side of the relationship from zero to one,the foreign key ________.

• A)must be changed from NULL to NOT NULL
• B)must be changed from NOT NULL to NULL
• C)must be changed to a composite key
• D)must be changed to a surrogate key
• E)does not change

---

Definitions:

Consideration

Something of value (such as an object, money, service, or promise) that is given by a party to induce another to enter into a contract.

Requirements Contract

A type of contract in which one party agrees to purchase all of its needs for a particular good or service from the other party.

Enforceable

Capable of being imposed or upheld by legal process, indicating that an agreement or law can be compelled to be obeyed or carried out.

Inadequate Consideration

When the value exchanged in a contract is disproportionately small, calling into question the validity of the agreement.