Software-testing
August 26, 2024ER-Model
August 26, 2024ER-Model
| Question 18 |
Under normal circumstances, the cardinality ratio of the binary relationship “Write” relating “Author” and “Book” entities is:
| 1 : N | |
| N : 1 | |
| 1 : 1 | |
| M : N |
Question 18 Explanation:
The relationship WRITES shows that one author can write many books and one book can be written by many authors. So the cardinality ratio is M:N
Correct Answer: D
Question 18 Explanation:
The relationship WRITES shows that one author can write many books and one book can be written by many authors. So the cardinality ratio is M:N
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