Database Fundamentals Quiz
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Questions and Answers

Which database model is the most popular example mentioned in the text?

  • Hierarchical model
  • Network model
  • Relational model (correct)
  • Object-oriented model

    • What determines the logical structure of a database?

  • Database model (correct)
  • Database instance
  • Database schema
  • Database key

    • What is an example of the logical structure of a database?

  • Instance
  • Table
  • Schema (correct)
  • Entity-Relationship Model

    • Which model uses a table-based format?

    <p>Relational model</p> Signup and view all the answers

    What does ER stand for in the context of database modeling?

    <p>Entity-Relationship</p> Signup and view all the answers

    In the context of database modeling, what does a database model determine?

    <p>The logical structure of a database</p> Signup and view all the answers

    What is the purpose of the Entity-Relationship Model in database modeling?

    <p>To represent the logical structure of the database</p> Signup and view all the answers

    What is the difference between a weak entity set and a strong entity set in the Entity-Relationship Model?

    <p>A weak entity set depends on another entity set, while a strong entity set does not</p> Signup and view all the answers

    What is the purpose of multiway relationships in the Entity-Relationship Model?

    <p>To represent relationships between more than two entity sets</p> Signup and view all the answers

    Which database model is mentioned as the most popular example in the text?

    <p>Relational model</p> Signup and view all the answers

    Which model uses a table-based format?

    <p>Relational model</p> Signup and view all the answers

    What determines the logical structure of a database?

    <p>Database model</p> Signup and view all the answers

    Which type of key uniquely identifies an entity set?

    <p>Primary key</p> Signup and view all the answers

    What is the logical structure of the database referred to as?

    <p>Schema</p> Signup and view all the answers

    What does the Entity-Relationship model describe?

    <p>Attributes and relationships</p> Signup and view all the answers

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