Data Modeling Quiz

What is data modeling?

• A way to represent data used by a business system

• A way to represent computer hardware

• A way to represent weather patterns

• A way to represent musical notes

Why do we model data?

• To ensure all data objects are accurately represented

• To predict the future

• To create art

• To build physical structures

What are the different levels of data modeling?

• Basic, Intermediate, Advanced

• Conceptual, Logical, Physical

• Red, Green, Blue

• Morning, Afternoon, Evening

What is the purpose of a conceptual data model?

• To show rules about the meaning and interrelationships among data

• To show rules about sports

• To show rules about the weather

• To show rules about cooking recipes

What is an entity in data modeling?

• A type of computer program

• A type of animal

• A type of food

• A person, place, object, event, or concept

What is an attribute in data modeling?

• A type of vehicle

• A type of musical instrument

• A type of weather condition

• A descriptive property or characteristic of an entity

What is a key attribute in data modeling?

• An attribute that is optional

• An attribute that is not important

• An attribute that changes frequently

• An attribute that uniquely identifies individual instances of an entity type

What is a relationship in data modeling?

• A link between languages

• A link between entities

• A link between countries

• A link between planets

What is a strong entity in data modeling?

• An entity that exists independently of other entity types

• An entity that is invisible

• An entity that is constantly changing

• An entity that is weak and dependent

When should a relationship with attributes be an associative entity?

• When the associative entity is strong

• When the associative entity is weak

• When the associative entity has no attributes

• When the associative entity could have meaning independent of the other entities