In Many-To-Many Relationships Between Strong Entities in a Relational Database

question 88

Multiple Choice

In many-to-many relationships between strong entities in a relational database design,which of the following is not true?

• A)The intersection table is ID-dependent on one of the parents
• B)The intersection table is ID-dependent on both of the parents
• C)The relationships from the intersection table to the parent tables are identifying relationships
• D)The maximum cardinality to the intersection table is always N

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Definitions:

Fetal Period

The stage of human development that starts from the ninth week after fertilization and continues until birth, characterized by rapid growth and maturation of tissues and organs.

Pre-embryonic Period

The earliest phase of prenatal development, encompassing the first week after fertilization when the zygote forms.

Embryonic Period

A critical phase in early development post-fertilization where the embryo undergoes rapid growth and differentiation.

Gestational Period

The duration of pregnancy, typically measured from the first day of the last menstrual period to birth, approximately 40 weeks in humans.