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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