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Welcome to the Visibility,Accessibility and Information Hiding MCQs Page

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

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

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

Visibility,Accessibility and Information Hiding MCQs | Page 11 of 13

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Q101.
Which of the following is incorrect with respect to the proxy pattern?

a.

The Proxy pattern should be used whenever the services directly provided by some object need to be managed or mediated in some way without changing the object’s interface

b.

Virtual proxies can be used to delay the creation or loading of large and time-consuming objects to preserve space and ensure rapid responses to requests

c.

Remote proxies can hide the fact that an object is not locally present,handling the communication necessary to access the remote real object

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q102.
Which of the following is consequence for proxy pattern?

a.

The Proxy pattern makes it possible to defer expensive operations until they are necessary (virtual proxies)

b.

Provides an elegant way to treat remote objects as if they were local (remote proxies)

c.

Provides a mechanism for implementing supplier access restrictions (protection or access proxies)

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q103.
Most object-oriented languages and systems provide which of these ways to create new objects?

a.

Instantiating a class using one of its constructors

b.

Cloning an existing object

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (c).All of the mentioned
Q104.
Which of the following truly describes the structure of Generator pattern?

a.

A generator pattern has a Client that needs an instance of a Product class

b.

A Generator that creates or obtains access to such an instance on behalf of the Client

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (c).All of the mentioned
Q105.
Which of the following is true about factory method?

a.

A factory method is a non-constructor operation that creates and returns class instances

b.

Factory methods are widely used in mid-level design patterns and in object-oriented programming in general

c.

Factory methods create new instances using constructors or cloning, so they do not rely on any special technique for class instantiation

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q106.
When a generator assumes responsibility for product object creation in a factory method,which of the following capabilities become available?

a.

Access to product constructors can be restricted

b.

Private data can be provided to new product objects

c.

Product objects can be configured after creation

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q107.
Which are the several reasons for using generator patterns?

a.

Product Creation Control

b.

Product Configuration Control

c.

Client and Product Decoupling

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q108.
The Factory patterns decouple clients from products by taking advantage of interfaces in two ways?

a.

The generator class with the factory methods cannot be changed, disallowing variability in factory method implementations

b.

Instances of a variety of classes that implement the product interface can be returned by a factory method, allowing great flexibility in results

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (b).Instances of a variety of classes that implement the product interface can be returned by a factory method, allowing great flexibility in results
Q109.
What are the types of factory pattern?

a.

Factory Method

b.

Abstract Method

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (c).All of the mentioned
Q110.
Which class that can have only one instance?

a.

Adaptor Class

b.

Proxy Class

c.

Singleton Class

d.

Factory class

Discuss
Answer: (c).Singleton Class
Page 11 of 13

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