Which of the Following Is True About Representing a Weak

question 80

Multiple Choice

Which of the following is true about representing a weak entity with the relational model?

• A) If the weak entity is existence-dependent, the key of the parent must be part of the key of the weak entity.
• B) If the strong entity has a minimum cardinality of 1, the key of the weak entity must be part of the strong entity.
• C) If the weak entity is ID-dependent, the key of the weak entity must be part of the key of the parent entity.
• D) If the weak entity is ID-dependent, the key of the parent entity must be part of the key of the weak entity.
• E) If the parent entity is existence-dependent, then the minimum cardinality of the weak entity is zero.

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Definitions:

Adipose Tissue

A type of body tissue containing stored fat that serves as a source of energy, insulates the body, and protects organs.

Subcutaneous Layer

The layer of tissue directly under the skin, composed of fat and connective tissues, providing insulation and cushioning to the body.

Dermis

The thick layer of living tissue below the epidermis in mammalian skin, containing hair follicles, sweat glands, and other structures.

Structural Strength

Refers to the ability of a material or structure to withstand loads that are applied to it without breaking or deforming.