The preferred placement for a foreign key when working with a 1:1 relationship is to ____.
A) use the same primary key for both entities
B) create a bridge entity
C) place a foreign key in one of the entities
D) place a foreign key in both entities

Question

Quizplus · Accepted Answer

When working with a 1:1 relationship, it is best to place the foreign key in one of the entities. This creates a direct relationship between the two entities and avoids the need for a bridge entity or duplicating the primary key in both entities.

The Preferred Placement for a Foreign Key When Working with a 1:1