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Records in Data Management
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Records in Data Management

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Questions and Answers

What are the two types of records mentioned in the text?

  • Static Record and Dynamic Record
  • Fixed length Record and Variable length Record (correct)
  • Sequential Record and Random Record
  • Short length Record and Long length Record

    • In a fixed length record, what is the requirement for each occurrence of the record?

  • Each occurrence must have only one field present and the length of each field must be different
  • Each occurrence must have all fields present and the length of each field must be the same (correct)
  • Each occurrence must have all fields present but the length of each field can vary
  • Each occurrence must have at least one field present and the length of each field can vary

    • How is space managed in a fixed-length record when some records do not have values for all fields?

  • Space is reused for other records if some records do not have values for all fields
  • Space is wasted when some records do not have values for all fields (correct)
  • Space is allocated only for the fields that have values in each record
  • Space is dynamically adjusted based on the number of fields in each record

    • How can a file with variable length records be represented?

    <p>As a fixed length of record files with no wasted space</p> Signup and view all the answers

    What is the size of each record shown in the text?

    <p>154 bytes</p> Signup and view all the answers

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