Multiple choice technology databases

Which of the following statements best describe the function of an entity relational model?

  1. An ER model is concerned primarily with a physical implementation of the data and secondly with a logical view

  2. An ER model provides a view of the logic of the data and not the physical implementation

  3. An ER model is concerned primarily with a logical view of the data and secondly with the physical implementation

  4. An ER model is entirely concerned with modelling the physical implementation
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Entity-Relationship models represent logical data structures, entities, their attributes, and relationships, independent of physical storage implementation. They focus on what data exists and how it relates, not how or where it's stored. Options A, C, and D incorrectly assign physical implementation concerns to the ER model's purpose.

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