Database - Modeling Data in the Organization
Exercise :: Modeling Data in the Organization - General Questions
| 11. |
A composite attribute is which of the following? |
| A. |
An attribute that can be broken into components | | B. |
An attribute that cannot be broken into components | | C. |
Multiple attributes | | D. |
An identifier |
Answer: Option A
Explanation:
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| 12. |
A binary relationship cannot be which of the following? |
| A. |
One-to-One | | B. |
One-to-Many | | C. |
Many-to-Many | | D. |
Zero-to-Zero |
Answer: Option D
Explanation:
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| 13. |
A ternary relationship involves how many entities? |
| A. |
3 or less | | B. |
3 | | C. |
More than 3 | | D. |
3 or more |
Answer: Option B
Explanation:
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| 14. |
When the minimum number of instances of an entity is one, you know which of the following? |
| A. |
Mandatory one | | B. |
Optional one | | C. |
Mandatory many | | D. |
Cannot tell |
Answer: Option D
Explanation:
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| 15. |
A good business rule is which of the following? |
| A. |
Declarative | | B. |
Imprecise | | C. |
Redundant | | D. |
Compound |
Answer: Option A
Explanation:
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