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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 2 of 13

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Q11.
When is a variable called extending access beyond visibility?

a.

Passing a reference as an argument

b.

Passing an argument by reference (which uses aliasing)

c.

Returning a reference from a sub-program

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q12.
What does Information Hiding mean?

a.

The key technique for is to restrict access to program entities as much as possible

b.

It is an expression that evaluates to an address where a value is stored

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (a).The key technique for is to restrict access to program entities as much as possible
Q13.
Which of the following are the strategies for restricting access to program entities?

a.

Limiting Visibility

b.

Not Extending Access

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (d).None of the mentioned
Q14.
What are the heuristics for information hiding?

a.

Restrict the scope of declarations to the smallest possible program segment

b.

Make class attributes at least protected and preferably private

c.

Avoid global visibility

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q15.
What are the heuristics for information hiding under don’t extend access?

a.

Don’t pass or return references to class attributes—pass or return defensive copies instead.

b.

Don’t pass parameters by reference

c.

Don’t make aliases

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q16.
What is operation specification and what does it include?

a.

Specification of an operation’s responsibilities and interface can be collected in one place, in structured

b.

It includes Class or Module, Signatures, Descriptions

c.

It includes Behavior, Implementation

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q17.
What is Signature?

a.

The operation’s class (in object-oriented designs) or module (in non-object-oriented designs)

b.

The operation name, the names and types of its parameters,and its return type

c.

A sentence or two informally stating the operation’s responsibilities

d.

A detailed description of the algorithm and data structures used to implement this operation

Discuss
Answer: (b).The operation name, the names and types of its parameters,and its return type
Q18.
What is procedural specification?

a.

A behavior description that does not use an algorithm

b.

An algorithmic behavior description

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (b).An algorithmic behavior description
Q19.
Declarative specifications are preferable for which of the following reasons?

a.

Declarative specifications are more abstract because they ignore implementation details, and consequently they are more concise than procedural specifications

b.

Declarative specifications focus on an operation’s interface, making it clearer how an operation interacts with its callers

c.

Procedural specifications may bias programmers toward the implementation used in the specification

d.

All of the mentioned

Discuss
Answer: (d).All of the mentioned
Q20.
What is true with respect to operation contract?

a.

It is a binding agreement between two or more parties

b.

They usually state each party’s rights and obligations

c.

All of the mentioned

d.

None of the mentioned

Discuss
Answer: (c).All of the mentioned
Page 2 of 13

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