Chapter 5: Managing Data Difficulties and Sources
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Questions and Answers

What is the primary purpose of a Primary Key in a database?

  • Uniquely identifies a row of another table
  • Identifying information but typically does not identify the record with complete accuracy
  • Uniquely identifies a record so it can be retrieved (correct)
  • Highly organizes data in fixed fields

    • Which type of data is described as being difficult to manage using traditional database management systems?

  • Structured data
  • Unstructured data
  • Foreign key data
  • Big data (correct)

    • What does a Data Dictionary provide information on in a database?

  • Relationships between entities
  • Each attribute such as name, key status, etc. (correct)
  • Cardinality of relationships
  • Primary Key values

    • What is the main characteristic of Explicit knowledge in an organization?

    <p>Consists of technical types of knowledge</p> Signup and view all the answers

    In the context of databases, what is the purpose of a Foreign Key?

    <p>Uniquely identifies a row of another table</p> Signup and view all the answers

    What does an Entity-Relationship Diagram (ERD) help with in database planning?

    <p>Illustrating associations between entities</p> Signup and view all the answers

    What is the correct order of data storage sizes from largest to smallest?

    <p>Kilobyte -&gt; Megabyte -&gt; Gigabyte -&gt; Terabyte</p> Signup and view all the answers

    Which of the following best describes master data?

    <p>A set of core data such as customer, product, employee, vendor, and geographic location</p> Signup and view all the answers

    What is the purpose of a Database Management System (DBMS)?

    <p>To provide users with tools to create and manage a database</p> Signup and view all the answers

    Which of the following best describes an instance in the context of a database?

    <p>A specific, unique representation of the entity</p> Signup and view all the answers

    Which of the following is NOT a source of data mentioned in the text?

    <p>Social media posts and online forums</p> Signup and view all the answers

    What does the term data model refer to in the context of a database?

    <p>A diagram that represents entities in the database and their relationships</p> Signup and view all the answers

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