Oriented Data Modeling Questions and Answers
Oriented Data Modeling questions with answers help students understand how data is structured and managed in databases. This topic focuses on object-oriented and relational data models used for designing efficient database systems. Practicing aptitude questions and answers with explanations on oriented data modeling enhances your conceptual clarity for exams like GATE, SSC JE, and placement tests by Infosys, TCS, and Wipro. These questions test your understanding of entities, relationships, attributes, and normalization processes. With proper practice, you can easily solve DBMS aptitude questions with solutions PDF and gain an edge in competitive exams and technical interviews where data modeling concepts are frequently tested.
Oriented Data Modeling
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14 questions
11. The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?
- Overlapping rule
- Disjoint rule
- Total specialization rule
- Partial specialization rule
12. A constructor operation does which of the following?
- Creates a new instance of a class
- Updates an existing instance of a class
- Deletes and existing instance of a class
- All of the above.
13. Which of the following is a technique for hiding the internal implementation details of an object?
- Encapsulation
- Polymorphism
- Inheritance
- All of the above.
14. Aggregation is which of the following?
- Expresses a part-of relationship and is a stronger form of an association relationship.
- Expresses a part-of relationship and is a weaker form of an association relationship
- Expresses an is-a relationship and is a stronger form of an association relationship.
- Expresses an is-a relationship and is a weaker form of an association relationship.