21. Overlapping and disjoint subtypes have different approaches on how the subtype discriminator is applied. A. True B. False 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
22. An entity instance of a subtype represents the same entity instance of a supertype. A. True B. False 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
23. A supertype is an entity type that shares common attributes or relationships distinct from other subgroupings. A. True B. False 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
24. An ERD that has had the entities clustered will display more entities. A. True B. False 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
25. Total specialization is represented by double lines between the supertype and subtype on an EER. A. True B. False 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
26. Generalization is the process of defining more general entity types from a set of more specialized entity types. A. True B. False 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
27. It is appropriate to use a supertype/subtype relationship when there are attributes that apply to some of the instances of an entity type. A. True B. False 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
28. If an entity adheres to the disjoint rule, then an entity instance can be a member of more than one entity for a given supertype. A. True B. False 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
29. Action assertions have traditionally been implemented within an application program. A. True B. False 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
30. An entity cluster is a set of one or more entity types and associated relationships. A. True B. False 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