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Chapter 3 DATABASE MODEL MCQs

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1. The term 'semantic' means?





2. Which of the following is not true of semantic objects?





3. A semantic object?





4. Combinations of composite and compound objects are known as?





5. A semantic object that contains only single-value, simple or group attributes is called?





6. Which of the following are used to represent the specialization of objects?





7. The columns of a table correspond to _____?





8. A relation is also known as _____?





9. An attribute is also known as a _____?





10. Which of the following is NOT a general characteristic of relations _____?





11. Which of the following are properties of relations _____?





12. How are the E-R model and the semantic object model similar?





13. How many categories of data models in DBMS?





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