Welcome to the Object Tools and Variables MCQs Page

Dive deep into the fascinating world of Object Tools and Variables with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Object Tools and Variables, a crucial aspect of PHP. In this section, you will encounter a diverse range of MCQs that cover various aspects of Object Tools and Variables, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within PHP.

Check out the MCQs below to embark on an enriching journey through Object Tools and Variables. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of PHP.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Object Tools and Variables. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Object Tools and Variables MCQs | Page 10 of 17

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Q91.

Which one among the following means tight coupling ?

Code Duplication

Inheritance

Encapsulation

Polymorphism

Discuss

Answer: (a).Code Duplication

Q92.

UML stands for?

unified mailing language

unified modeling logo

undefined modeling language

unified modeling language

Discuss

Answer: (d).unified modeling language

Q93.

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

Class Attributes

Class Declaration

Class Name

Class Functions

Discuss

Answer: (c).Class Name

Q94.

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

Attributes

Constraints

Constants

Class Names

Discuss

Answer: (b).Constraints

Q95.

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

Functions

Methods

Attributes

Constraints

Discuss

Answer: (c).Attributes

Q96.

+ is the visibility code for?

Public

Private

Protected

Friendly

Discuss

Answer: (a).Public

Q97.

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

Composition

Abstraction

Aggregation

Inheritance

Discuss

Answer: (c).Aggregation

Q98.

If the diamond is filled it depicts which relationship?

Strong Aggregation

Composition

Abstraction

Inheritance

Discuss

Answer: (b).Composition

Q99.

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

A sequence diagram is class based

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

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

A sequence diagram is object based

Discuss

Answer: (d).A sequence diagram is object based

Q100.

A bidirectional relationship in class diagrams is described by________

double-headed arrow

visibility symbols

single-headed arrow

double diamond

Discuss

Answer: (a).double-headed arrow

Page 10 of 17

Welcome to the Object Tools and Variables MCQs Page

Object Tools and Variables MCQs | Page 10 of 17

Explore more Topics under PHP

Basics of PHP

Arrays and Functions in PHP

Object Oriented PHP

Error and Exception Handling in PHP

Strings and Regular Expressions

PHP Filesystem

Session Handling in PHP

Objects and Databases in PHP

Constants and Operators in PHP

PHP Controls Structures

Functions in PHP

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