Object Oriented Concept MCQ question and answer with solution

1.
Which one of the following is know as the key to object-oriented programming?

A. Polymorphism

B. Encapsulation

C. Data Abstraction

D. Orthogonality

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2.
Which one among the following means tight coupling?

A. Code Duplication

B. Inheritance

C. Encapsulation

D. Polymorphism

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3.
UML stands for?

A. unified mailing language

B. unified modeling logo

C. undefined modeling language

D. unified modeling language

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4.
In a class diagram the class is divided into three sections, what is displayed in the first section?

A. Class Attributes

B. Class Declaration

C. Class Name

D. Class Functions

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5.
_________ are used in class diagrams to describe the way in which specific elements should be used.

A. Attributes

B. Constraints

C. Constants

D. Class Names

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6.
Which one of the following is displayed below the class name in the class diagrams?

A. Functions

B. Methods

C. Attributes

D. Constraints

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7.
+ is the visibility code for?

A. Public

B. Private

C. Protected

D. Friendly

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8.
Which relationship is illustrated by a line that begins with an unfilled diamond?

A. Composition

B. Abstraction

C. Aggregation

D. Inheritance

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9.
If the diamond is filled it depicts which relationship?

A. Strong Aggregation

B. Composition

C. Abstraction

D. Inheritance

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10.
Which one of the following statements is true about sequence diagrams?

A. A sequence diagram is class based

B. A sequence diagram presents the participants of a system from right to left

C. The vertical broken lines represent the lifetime of the class in the system

D. A sequence diagram is object based

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Object Oriented Concept MCQ question and answer with solution | PHP Programming

1. Which one of the following is know as the key to object-oriented programming?

Answer & Solution

2. Which one among the following means tight coupling?

Answer & Solution

3. UML stands for?

Answer & Solution

4. In a class diagram the class is divided into three sections, what is displayed in the first section?

Answer & Solution

5. _________ are used in class diagrams to describe the way in which specific elements should be used.

Answer & Solution

6. Which one of the following is displayed below the class name in the class diagrams?

Answer & Solution

7. + is the visibility code for?

Answer & Solution

8. Which relationship is illustrated by a line that begins with an unfilled diamond?

Answer & Solution

9. If the diamond is filled it depicts which relationship?

Answer & Solution

10. Which one of the following statements is true about sequence diagrams?

Answer & Solution

Read More Section(Object Oriented Concept)

1.
Which one of the following is know as the key to object-oriented programming?

2.
Which one among the following means tight coupling?

3.
UML stands for?

4.
In a class diagram the class is divided into three sections, what is displayed in the first section?

5.
_________ are used in class diagrams to describe the way in which specific elements should be used.

6.
Which one of the following is displayed below the class name in the class diagrams?

7.
+ is the visibility code for?

8.
Which relationship is illustrated by a line that begins with an unfilled diamond?

9.
If the diamond is filled it depicts which relationship?

10.
Which one of the following statements is true about sequence diagrams?