Database Environment and Development Quiz
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Questions and Answers

Which of the following best describes a database?

  • A structured representation of meaningful objects and events (correct)
  • A collection of unrelated data
  • A collection of images and videos
  • Data processed to increase knowledge

    • What is metadata?

  • A collection of unrelated data
  • Data that describes the properties and co (correct)
  • A structured representation of meaningful objects and events
  • Data processed to increase knowledge

    • What are the advantages of databases over conventional file processing?

  • Faster processing speed
  • More flexible data retrieval
  • Improved data sharing and data integration (correct)
  • Lower storage costs

    • What are the limitations of conventional file processing?

    <p>Lack of data sharing capabilities</p> Signup and view all the answers

    What is the three-schema architecture for databases?

    <p>A framework for describing the database system</p> Signup and view all the answers

    Which of the following is a component of the relational model?

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

    Which of the following best describes a relation in the relational model?

    <p>A named, two-dimensional table of data</p> Signup and view all the answers

    What is the purpose of the SQL operations in the relational model?

    <p>To retrieve and modify data</p> Signup and view all the answers

    What is the main goal of normalization in database design?

    <p>To convert anomalous tables to well-structured relations</p> Signup and view all the answers

    What are the properties of candidate keys in the relational model?

    <p>All of the above</p> Signup and view all the answers

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