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Modeling Data in the Organization

Modeling Data in the Organization
A time stamp is a time value that is associated with a data value.

False
True

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Modeling Data in the Organization
A binary relationship cannot be which of the following?

Many-to-Many
One-to-One
Zero-to-Zero
One-to-Many

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Modeling Data in the Organization
A fact is a word or phrase that has a specific meaning for the business.

False
True

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Modeling Data in the Organization
If there are two entities with a relationship between them, and one of the entities is completely dependent on the other, then which of the following must exist?

Weak entity
Optional one cardinality
Multi-valued attribute
Derived attribute

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Modeling Data in the Organization
Business rules and policies are universal.

False
True

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Modeling Data in the Organization
An oval represents which of the following in an ERD?

Relationship
Entity
Attribute
Optional One

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