11. An attribute that names or identifies entity instances is a(n): A. entity. B. attribute. C. identifier. D. relationship. Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
12. Properties that describe the characteristics of entities are called: A. entities. B. attributes. C. identifiers. D. relationships. Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
13. In which of the following can many entity instances of one type be related to many entity instances of another type? A. One-to-One Relationship B. One-to-Many Relationship C. Many-to-Many Relationship D. Composite Relationship Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
14. Entities of a given type are grouped into a(n): A. database. B. entity class. C. attribute. D. ERD. Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
15. Which of the following is NOT a basic element of all versions of the E-R model? A. Entities B. Attributes C. Relationships D. Primary keys Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
16. In which of the following is a single-entity instance of one type of related to a single-entity instance of another type? A. One-to-One Relationship B. One-to-Many Relationship C. Many-to-Many Relationship D. Composite Relationship Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option A No explanation is given for this question Let's Discuss on Board
17. Entities can be associated with one another in which of the following? A. Entities B. Attributes C. Identifiers D. Relationships Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option D No explanation is given for this question Let's Discuss on Board
18. Which type of entity has its relationship to another entity determined by an attribute in that other entity called a discriminator? A. Supertype entity B. Subtype entity C. Archetype entity D. Instance entity Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
19. Which type of entity represents a logical generalization whose actual occurrence is represented by a second, associated entity? A. Supertype entity B. Subtype entity C. Archetype entity D. Instance entity Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option C No explanation is given for this question Let's Discuss on Board
20. In a one-to-many relationship, the entity that is on the many side of the relationship is called a(n) ________ entity. A. parent B. child C. instance D. subtype Answer & Solution Discuss in Board Save for Later Answer & Solution Answer: Option B No explanation is given for this question Let's Discuss on Board
