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- Question
The fact that the same operation may apply to two or more classes is called what?
Options- A. Inheritance
- B. Polymorphism
- C. Encapsulation
- D. Multiple classification
- Correct Answer
- Polymorphism
- 1. The object-oriented development life cycle is which of the following?
Options- A. Analysis, design, and implementation steps in the given order and using multiple iterations.
- B. Analysis, design, and implementation steps in the given order and going through the steps no more than one time.
- C. Analysis, design, and implementation steps in any order and using multiple iterations.
- D. Analysis, design, and implementation steps in any order and going through the steps no more than one time. Discuss
- 2. The term Incomplete for a UML has the same meaning as which of the following for an EER diagram?
Options- A. Overlapping rule
- B. Disjoint rule
- C. Total specialization rule
- D. Partial specialization rule Discuss
- 3. Multiplicity is the same as what concept for an ERD?
Options- A. Relationship
- B. Attribute
- C. Entity
- D. Cardinality Discuss
- 4. The term Complete for a UML has the same meaning as which of the following for an EER diagram?
Options- A. Overlapping rule
- B. Disjoint rule
- C. Total specialization rule
- D. Partial specialization rule Discuss
- 5. Backward recovery is which of the following?
Options- A. Where the before-images are applied to the database
- B. Where the after-images are applied to the database
- C. Where the after-images and before-images are applied to the database
- D. Switching to an existing copy of the database Discuss
- 6. Which of the following is a technique for hiding the internal implementation details of an object?
Options- A. Encapsulation
- B. Polymorphism
- C. Inheritance
- D. All of the above. Discuss
- 7. Aggregation is which of the following?
Options- A. Expresses a part-of relationship and is a stronger form of an association relationship.
- B. Expresses a part-of relationship and is a weaker form of an association relationship.
- C. Expresses an is-a relationship and is a stronger form of an association relationship.
- D. Expresses an is-a relationship and is a weaker form of an association relationship. Discuss
- 8. Which of the following applies to a class rather than an object?
Options- A. Query
- B. Update
- C. Scope
- D. Constructor Discuss
- 9. A UML diagram includes which of the following?
Options- A. Class name
- B. List of attributes
- C. List of operations
- D. All of the above. Discuss
- 10. Which of the following statement is true concerning objects and/or classes?
Options- A. An object is an instance of a class.
- B. A class is an instance of an object.
- C. An object includes encapsulates only data.
- D. A class includes encapsulates only data. Discuss
Object-Oriented Data Modeling problems
Search Results
Correct Answer: Analysis, design, and implementation steps in the given order and using multiple iterations.
Correct Answer: Partial specialization rule
Correct Answer: Cardinality
Correct Answer: Total specialization rule
Correct Answer: Where the before-images are applied to the database
Correct Answer: Encapsulation
Correct Answer: Expresses a part-of relationship and is a stronger form of an association relationship.
Correct Answer: Scope
Correct Answer: All of the above.
Correct Answer: An object is an instance of a class.
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