Database - Object-Oriented Data Modeling

Why Database Object-Oriented Data Modeling?

In this section you can learn and practice Database Questions based on "Object-Oriented Data Modeling" and improve your skills in order to face the interview, competitive examination and various entrance test (CAT, GATE, GRE, MAT, Bank Exam, Railway Exam etc.) with full confidence.

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How to solve Database Object-Oriented Data Modeling problems?

You can easily solve all kind of Database questions based on Object-Oriented Data Modeling by practicing the objective type exercises given below, also get shortcut methods to solve Database Object-Oriented Data Modeling problems.

Exercise :: Object-Oriented Data Modeling - General Questions

1. 

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:

No answer description available for this question. Let us discuss.

2. 

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:

No answer description available for this question. Let us discuss.

3. 

Multiplicity is the same as what concept for an ERD?

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

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

4. 

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:

No answer description available for this question. Let us discuss.

5. 

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:

No answer description available for this question. Let us discuss.