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Database Systems - Section 3 Multiple Questions and Answers.
| 21. | Ellipses represent_________? | ||
| A. | Relationship sets | ||
| B. | Attributes | ||
| C. | Derived attributes | ||
| D. | Multivalued attributes | ||
| 22. | Diamond Represents______? | ||
| A. | Relationship sets | ||
| B. | Attributes | ||
| C. | Derived attributes | ||
| D. | Multi-valued attributes | ||
| 23. | Which of the following diagram link attributes to entity sets and entity sets to relationship sets? | ||
| A. | Double lines | ||
| B. | Dashed Ellipses | ||
| C. | Double ellipses | ||
| D. | Lines | ||
| 24. | Double ellipses represents_____? | ||
| A. | Derived attributes | ||
| B. | Multi-valued Attributes | ||
| C. | Total participation of an entity in a relationship set | ||
| D. | Weak entity sets | ||
| 25. | Dashed ellipses represents_____? | ||
| A. | Derived attributes | ||
| B. | Multi-valued Attributes | ||
| C. | Total participation of an entity in a relationship set | ||
| D. | Weak entity sets | ||
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