File Structure and Record Storage Quiz
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Questions and Answers

Why are most databases stored permanently on disk secondary storage?

  • Cost of secondary memory is higher than primary memory
  • Secondary memory is more secure than primary memory
  • Databases are generally too large to fit entirely in main memory (correct)
  • Secondary memory is faster than primary memory
  • What is primary storage in a computerized system?

  • Storage media with large capacity and slow access
  • Storage media that is inexpensive
  • Storage media that can be operated on directly by the CPU (correct)
  • Storage media that stores data permanently
  • What constitutes a record type or record format definition?

  • A sequence of records
  • A collection of related data values or items
  • A collection of field names and their corresponding data types (correct)
  • A collection of file names
  • What is a file in the context of data storage?

    <p>A sequence of records of the same record type (C)</p> Signup and view all the answers

    When is a file said to be made up of fixed-length records?

    <p>When every record in the file has exactly the same size (C)</p> Signup and view all the answers

    1. What is the purpose of primary storage in a computerized system?

    <p>Primary storage is used for storing data that can be operated on directly by the CPU. It is fast but has limited storage capacity.</p> Signup and view all the answers

    1. Why are most databases stored permanently on disk secondary storage?

    <p>Most databases are stored permanently on disk secondary storage because they are generally too large to fit entirely in main memory, secondary memory is permanent, and the cost is less.</p> Signup and view all the answers

    1. What is a record in the context of data storage?

    <p>A record is a collection of related data values or items that usually describe entities, their attributes, and their relationships.</p> Signup and view all the answers

    1. What is a file in the context of data storage?

    <p>A file is a sequence of records, all of which should be of the same record type. If every record in the file has exactly the same size, the file is said to be made up of fixed-length records.</p> Signup and view all the answers

    1. What constitutes a record type or record format definition?

    <p>A collection of field names and their corresponding data types constitutes a record type or record format definition.</p> Signup and view all the answers

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