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Welcome to the Software Design Concepts MCQs Page

Dive deep into the fascinating world of Software Design Concepts with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Software Design Concepts, a crucial aspect of Software Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Software Design Concepts, 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 Software Engineering.

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Check out the MCQs below to embark on an enriching journey through Software Design Concepts. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Software Engineering.

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

Software Design Concepts MCQs | Page 65 of 79

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Q641.
What is the main objective of object hierarchy in object-oriented systems?

a.

To distinguish between different types of objects

b.

To perform simple lookup procedures

c.

To establish whole-part and generalization-specialization relations between objects

d.

To examine real-world classifications of the system

Discuss
Answer: (c).To establish whole-part and generalization-specialization relations between objects Explanation:The object hierarchy in object-oriented systems involves a search for relations between objects and the main objective is to establish whole-part and generalization-specialization relations between objects.
Q642.
What is the purpose of services in object-oriented programming?

a.

To write the object's attributes

b.

To compute information about the state of an object

c.

To provide information about the state of an object

d.

To manage relations between objects

Discuss
Answer: (c).To provide information about the state of an object Explanation:The services in object-oriented programming are concerned with the state of an object and provide information about that state. This information may or may not involve computation.
Q643.
What is the purpose of a sequence diagram in object-oriented programming?

a.

To represent the state of an object

b.

To show the optimization of an object's implementation

c.

To describe the interactions between components of the system

d.

To provide information about the state of an object

Discuss
Answer: (c).To describe the interactions between components of the system Explanation:A sequence diagram in object-oriented programming is used to represent the interactions between components of the system, such as in normal and exceptional situations.
Q644.
What is the purpose of the generalization-specialization hierarchy in object-oriented programming?

a.

To view similarities between objects and introduce a new object for common attributes

b.

To enhance the functionality of objects and create virtual functions

c.

To make decisions as to which objects and attributes to include in a design

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:The generalization-specialization hierarchy serves all of the purposes mentioned in the options.
Q645.
What is the function of the object Publication in the object hierarchy?

a.

To provide a common interface to its descendants

b.

To relate the other objects in the library system

c.

To define the common attributes for Book and Journal

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:The object Publication serves all of the functions mentioned in the options.
Q646.
What is the definition of virtual functions in object-oriented programming?

a.

Services of an object that can be redefined by its specializations

b.

A default implementation of an object's services

c.

A special type of object that enhances reusability

d.

None of the above

Discuss
Answer: (a).Services of an object that can be redefined by its specializations Explanation:Virtual functions are services of an object that can be redefined by its specializations.
Q647.
What should be considered when deciding which objects and attributes to include in a design and how to relate them in the object hierarchy?

a.

The number of attributes an object has

b.

The common attributes of an object's instances

c.

The meaning of an object's attributes

d.

All of the above

Discuss
Answer: (d).All of the above Explanation:The decisions on which objects and attributes to include in a design, and how to relate them in the object hierarchy, are highly intertwined. The factors considered when making these decisions include the number of attributes an object has, the common attributes of an object's instances, and the meaning of an object's attributes. All of these factors are important to consider in the design process.
Q648.
Why is the notion of virtual functions considered to be important for reusability?

a.

Because virtual functions can be redefined by specializations

b.

Because virtual functions cannot be redefined by specializations

c.

Because virtual functions provide a default implementation

d.

Because virtual functions provide a unique implementation

Discuss
Answer: (a).Because virtual functions can be redefined by specializations Explanation:The notion of virtual functions is considered important for reusability because it allows a variant of some object to be created by constructing a specialization of that object, in which some services are redefined. The virtual functions are services of an object that have a default implementation, which can be redefined by specializations of the object, providing greater flexibility and adaptability to different situations.
Q649.
What is the main characteristic of the set of objects identified in the first modeling stages of object-oriented design?

a.

They are the lowest level objects in the system

b.

They are the middle level objects in the system

c.

They are the highest level objects in the system

d.

None of the above

Discuss
Answer: (b).They are the middle level objects in the system Explanation:The set of objects identified in the first modeling stages of object-oriented design constitutes the "middle level of the system". This means that the objects identified in the first modeling stages occupy the middle position in the hierarchy of objects within the system.
Q650.
What is the main source of lower-level objects in object-oriented design?

a.

Domain-specific entities

b.

Class libraries

c.

Application-dependent interaction

d.

None of the above

Discuss
Answer: (b).Class libraries Explanation:The lower-level objects used in object-oriented design can often be taken from class libraries, which already exist for various object-oriented programming languages. The lower-level objects are used to implement the domain-specific entities, which are identified during the first modeling stages and constitute the middle level of the system.
Page 65 of 79

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