Database - Modeling Data in the Organization

Exercise :: Modeling Data in the Organization - General Questions

6. 

A rectangle represents which of the following in an ERD?

A. Attribute
B. Entity
C. Optional One
D. Relationship

Answer: Option B

Explanation:

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7. 

An entity name should be which of the following?

A. A singular noun
B. Specific to the organization
C. Concise
D. All of the above.

Answer: Option D

Explanation:

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8. 

An oval represents which of the following in an ERD?

A. Attribute
B. Entity
C. Optional One
D. Relationship

Answer: Option A

Explanation:

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9. 

When the minimum and maximum 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 A

Explanation:

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10. 

An attribute name should be which of the following?

A. Singular verb or verb phrase
B. Follow a standard format
C. Use a alias
D. All of the above.

Answer: Option B

Explanation:

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