ERP Entity Relationship Diagram Quiz
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Questions and Answers

What is a primary key in an Entity Relationship Diagram (ERP)?

  • A symbol used to depict relationships
  • A standardized set of symbols to represent attributes
  • A unique identifier for each instance of an entity (correct)
  • A numerical relationship between entities

    • How is cardinality defined in an Entity Relationship Diagram?

  • As the characteristics of an entity
  • As the color scheme used in the diagram
  • As the numerical relationship between two entities in a relationship (correct)
  • As the font size used for labeling entities

    • What do attributes represent in an Entity Relationship Diagram?

  • Characteristics that describe an entity (correct)
  • Real-world objects or concepts
  • The visual representation of data entities
  • Numerical relationships between entities

    • In an Entity Relationship Diagram, what does the term 'entity' refer to?

    <p>A real-world object or concept with a unique identity</p> Signup and view all the answers

    What is the function of a visual tool like an Entity Relationship Diagram (ERP)?

    <p>Organizing and understanding data entities and their relationships</p> Signup and view all the answers

    What does the term 'one-to-many (1:N)' signify in an Entity Relationship Diagram?

    <p>Each instance of one entity can relate to multiple instances of the other entity, but not vice versa</p> Signup and view all the answers

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