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Database Models (Hierarchical, Network, Relational)

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1. : In which database model is data organized in a tree-like structure?





2. : Which database model allows many-to-many relationships using records and sets?





3. : In the relational database model, data is stored in:





4. : Which of the following is an advantage of the hierarchical database model?





5. : Which of the following is a limitation of the hierarchical model?





6. : Which database model was standardized by E.F. Codd in 1970?





7. : Which model uses “pointers” to establish relationships between records?





8. : In relational databases, a relationship between two tables is established using:





9. : Which model provides the most flexibility and is widely used today?





10. : IBM’s IMS (Information Management System) is an example of which model?





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