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  • Question
  • Representation level data models provide the concepts that are close to the way many users perceive data


  • Options
  • A. TRUE
  • B. FALSE

  • Correct Answer
  • FALSE 

    Explanation

    High level data models provide the concepts that are close to the way many users perceive data

  • Tags: Database Administrator

    Database problems


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    • 1. Database is a collection of concepts that can be used to describe the structure of a database

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 2. A subset of the database which contain virtual data that is derived from the database files but is not explicitly stored is called

    • Options
    • A. Touple
    • B. View
    • C. Relation
    • D. Key
    • Discuss
    • 3. We Can still delete a row from primary table if there are related rows in secondary table once a refferential integrity is enforced

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 4. A data dictionary is a special file that contains

    • Options
    • A. The width of all fields in all files
    • B. The data type of all fields in all file
    • C. The name of all fields in all files
    • D. All of the above
    • Discuss
    • 5. Cloud computing is not suited for situations

    • Options
    • A. where complex legacy systems have to be ported
    • B. characterized by limited-time tasks
    • C. involving offloading of expensive computing tasks
    • D. with no existing regulatory compliance issues
    • Discuss
    • 6. Physical data models describe the details of how data is stored in the computers

    • Options
    • A. TRUE
    • B. FALSE
    • Discuss
    • 7. What is schema?
    • Discuss
    • 8. The capacity to change the conceptual schema without having to change external schemas or application programs is called

    • Options
    • A. Physical Data Independence
    • B. Logical Data Independence
    • C. Both A and B
    • D. None
    • Discuss
    • 9. What are different types of DBMS?
    • Discuss
    • 10. The no of entities participating in a relation is called

    • Options
    • A. Relation
    • B. Degree of relationship
    • C. Recursive relationship
    • D. None of the above
    • Discuss


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