Object-Oriented Data Modeling - General Questions (2)

9.

A UML diagram includes which of the following?

A.	Class name
B.	List of attributes
C.	List of operations
D.	All of the above.

Answer: Option D

Explanation:

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10.

The term Complete 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

Answer: Option C

Explanation:

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11.

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

Answer: Option B

Explanation:

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12.

Composition is a stronger form of which of the following?

A.	Aggregation
B.	Encapsulation
C.	Inheritance
D.	All of the above.

Answer: Option A

Explanation:

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13.

Multiplicity is the same as what concept for an ERD?

A.	Relationship
B.	Attribute
C.	Entity
D.	Cardinality

Answer: Option D

Explanation:

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14.

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.

Answer: Option A

Explanation:

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15.

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

Answer: Option B

Explanation:

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