NSCT – Data Models MCQs

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1. . A Data Model is:





2. . Which of the following is a type of data model?





3. . In a Hierarchical Data Model:





4. . In a Network Data Model:





5. . Relational Data Model stores data in:





6. . Primary key in relational model ensures:





7. . Foreign key is used to:





8. . Entity-Relationship (ER) model is used for:





9. . In ER Model, a relationship represents:





10. . Attributes in a data model describe:





11. . Object-oriented data models combine:





12. . Semantic data models focus on:





13. . Key constraints in data models ensure:





14. . Integrity constraints in data models maintain:





15. . A weak entity in ER model:





16. . A strong entity has:





17. . Cardinality in ER model represents:





18. . Aggregation in ER modeling is used to:





19. . Data abstraction in data models provides:





20. . The main purpose of Data Models is to:





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