21. A foreign key is used to implement relationships between tables. 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. The terms alternate key and candidate key mean the same thing. 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. In 1:N relationships, which entity becomes the parent entity is arbitrary. 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. When the parent entity is required, cascading updates and cascading deletions should be allowed or the associated actions on the parent should be prohibited. 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
25. In a 1:1 relationship, the primary key placement is arbitrary. 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. When the parent entity is required, a new child row can always be inserted. 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
27. All primary keys are required. 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. Intersection tables are ID-dependent on both their parent tables. 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
29. For every relationship, there are six possible sets of minimum cardinalities. 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
30. An intersection table is required to represent M:N 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