| 71. | An object can have which of the following multiplicities? |
| a. | Zero |
| b. | One |
| c. | More than one |
| d. | All of the above. |
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Answer: (d).All of the above.
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| 72. | Multiplicity is the same as what concept for an ERD? |
| a. | Relationship |
| b. | Attribute |
| c. | Entity |
| d. | Cardinality |
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Answer: (d).Cardinality
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| 73. | An abstract class is which of the following? |
| a. | A class that has direct instances, but whose descendants may have direct instances. |
| b. | A class that has no direct instances, but whose descendants may have direct instances. |
| c. | A class that has direct instances, but whose descendants may not have direct instances. |
| d. | A class that has no direct instances, but whose descendants may not have direct instances |
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Answer: (b).A class that has no direct instances, but whose descendants may have direct instances.
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| 74. | The term Incomplete for a UML has the same meaning as which of the following for an EER diagram? |
| a. | Overlapping rule |
| b. | Disjoint rule |
| c. | Total specialization rule |
| d. | Partial specialization rule |
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Answer: (d).Partial specialization rule
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| 75. | The fact that the same operation may apply to two or more classes is called what? |
| a. | Inheritance |
| b. | Polymorphism |
| c. | Encapsulation |
| d. | Multiple classification |
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Answer: (b).Polymorphism
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| 76. | Aggregation is which of the following? |
| 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. |
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Answer: (a).Expresses a part-of relationship and is a stronger form of an association relationship.
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| 77. | Composition is a stronger form of which of the following? |
| a. | Aggregation |
| b. | Encapsulation |
| c. | Inheritance |
| d. | All of the above. |
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Answer: (a).Aggregation
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| 78. | Which of the following applies to a class rather than an object? |
| a. | Query |
| b. | Update |
| c. | Scope |
| d. | Constructor |
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Answer: (c).Scope
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| 79. | The object-oriented development life cycle is which of the following? |
| 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. |
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Answer: (a).Analysis, design, and implementation steps in the given order and using multiple iterations.
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| 80. | The benefits of object-oriented modeling are which of the following? |
| a. | The ability to tackle more challenging problems |
| b. | Reusability of analysis, design, and programming results |
| c. | Improved communication between users, analysts, etc. |
| d. | All of the above. |
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Answer: (d).All of the above.
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