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Welcome to the Modeling MCQs Page

Dive deep into the fascinating world of Modeling with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Modeling, a crucial aspect of Software Engineering. In this section, you will encounter a diverse range of MCQs that cover various aspects of Modeling, 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 Modeling. 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 Modeling. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Modeling MCQs | Page 11 of 15

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Q101.
What is an association class in UML?

a.

A class symbol attached to an association path

b.

A relationship between two classes

c.

A property of a class

d.

A class property of an association

Discuss
Answer: (d).A class property of an association Explanation:An association class in UML is a class property of an association, which can be depicted as a class symbol attached to an association path with a dashed line.
Q102.
What is the difference between aggregation and composition in UML?

a.

Aggregation is a stronger notion of composition

b.

Composition is a stronger notion of aggregation

c.

Aggregation and composition are the same thing

d.

Aggregation and composition have no relation to each other

Discuss
Answer: (b).Composition is a stronger notion of aggregation Explanation:Composition is a strong notion of aggregation, in which the part object may belong to only one whole object. Aggregation, on the other hand, allows objects to be part of more than one other object.
Q103.
How is aggregation denoted in UML?

a.

An open filled diamond

b.

A solid filled diamond

c.

A line with a diamond adornment

d.

A line with an open circle adornment

Discuss
Answer: (c).A line with a diamond adornment Explanation:Aggregation is denoted with an open filled diamond as association role adornment.
Q104.
How is composition denoted in UML?

a.

An open filled diamond

b.

A solid filled diamond

c.

A line with a diamond adornment

d.

A line with an open circle adornment

Discuss
Answer: (b).A solid filled diamond Explanation:Composition is denoted by a solid filled diamond as an association role adornment.
Q105.
What is the multiplicity at the whole end of composition in UML?

a.

0..1

b.

1

c.

1..3

d.

Either a or b

Discuss
Answer: (d).Either a or b Explanation:At the whole end of composition, the multiplicity is either 1 or 0..1.
Q106.
What is the relationship between a class and its attributes in UML?

a.

Association

b.

Composition

c.

Aggregation

d.

Generalization

Discuss
Answer: (b).Composition Explanation:The part-of relationship is a relationship between a class and the classes of its attributes, represented by composition.
Q107.
What is an abstract class in UML?

a.

A class that can be instantiated directly

b.

A class that cannot be instantiated directly

c.

A class that has all its features implemented

d.

A class that is indicated by printing its name in bold

Discuss
Answer: (b).A class that cannot be instantiated directly Explanation:An abstract class is a class that cannot be instantiated directly. Only its (concrete) clients can.
Q108.
What is the purpose of abstract classes in UML?

a.

To create concrete clients

b.

To provide implementation for all its features

c.

To indicate its name in italics

d.

To serve as a hierarchy of data types

Discuss
Answer: (d).To serve as a hierarchy of data types Explanation:Abstract classes typically occur in hierarchies of data types.
Q109.
What is an interface in UML?

a.

A class with all its features implemented

b.

A class with all its features abstract

c.

A class with its properties accessible to customers

d.

A class with its properties restricted to needed access

Discuss
Answer: (b).A class with all its features abstract Explanation:An interface is a class all of whose features are abstract. It has no implementation.
Q110.
What is the purpose of interfaces in UML?

a.

To provide access to all the properties of a class

b.

To increase the robustness of a model by restricting access to properties needed

c.

To define different interfaces to different client classes

d.

To provide implementation for all its features

Discuss
Answer: (b).To increase the robustness of a model by restricting access to properties needed Explanation:Interfaces are a useful means to split the set of properties of a class into subsets, in case other classes only need access to subsets of those properties. They are often used to increase the robustness of a model, by restricting access to properties really needed.
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