ER-Model
August 26, 2024ER-Model
August 26, 2024ER-Model
Question 19 |
Which of the following statements is TRUE?
The cardinality ratio for a binary relationship specifies the maximum number of relationship instances that an entity can participate in. | |
The cardinality ratio for a binary relationship specifies the minimum number of relationship instances that an entity can participate in. | |
The partial participation constraint is also called existence dependency. | |
The cardinality ratio for a relationship specifies the average number of relationship instances that an entity can participate in. |
Question 19 Explanation:
Cardinality: cardinality ratio for a binary relationship specifies the maximum number of relationship instances that an entity can participate in.
Participation: Participation for a binary relationship specifies the minimum number of relationship instances that an entity can participate in.
Participation: Participation for a binary relationship specifies the minimum number of relationship instances that an entity can participate in.
Correct Answer: A
Question 19 Explanation:
Cardinality: cardinality ratio for a binary relationship specifies the maximum number of relationship instances that an entity can participate in.
Participation: Participation for a binary relationship specifies the minimum number of relationship instances that an entity can participate in.
Participation: Participation for a binary relationship specifies the minimum number of relationship instances that an entity can participate in.
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