In the figure below there exists a relationship between the Employee and the Dependent Relations. What type of relationship is shown?

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BlackTom AI · Accepted Answer

When analyzing the diagram, we observe that the Dependent entity cannot stand alone and relies on the Employee entity for its identity. 
Option 1: 'A Strong and Weak Entity Relationship.' This is consistent with a weak entity (Dependent) that has a partial key and an identifying relationship to its owner (Employee). The circle and double-line notation typically indicate that the dependent's identity is derived from the employee, which matches a strong (Employee) and weak (Dependent) entity pair.
Option 2: 'A Composite Foreign Key Relationship.' While the dependent may reference the employee via a key, the diagram emphasizes an identifying relationship rather than simply a composite foreign key constraint. The visual cues point to a dependency for identity, not just a foreign key link.
Option 3: 'A Many-to-Many Relationship.' The diagram shows a direct, singular identifying link between each dependent and a single employee, not a many-to-many association where a dependent could relate to multiple employees or vice versa.
Option 4: 'An Associative Relationship.' An associative (junction) entity usually resolves a many-to-many relationship by converting it into two one-to-many relations with its own primary key; the pictured Dependent does not function as a pure associative entity in this context.
In summary, the structure indicates a dependent that is weak and identified by its relationship to an employee, which aligns with a weak-strong entity relationship rather than the other listed types.

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In the figure below there exists a relationship between the Employee and the Dependent Relations. What type of relationship is shown?

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