Solid Principles MCQ Quiz Questions And Answers

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Questions: 10 | Attempts: 10,503 | Updated: Nov 22, 2023

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Do you know what solid principles are? Here's an interesting and well-researched quiz based on solid principles that we have designed to check your understanding of this topic. The solid principle is all about object-oriented computer programming in which design principles are engaged to make software design more understandable. So, take this quiz and see how much knowledge you really have. You might also get to learn some new facts on the way!

Questions and Answers

1.

Solid principles was promoted by which of these?
- A.
  
  Robert Hook
- B.
  
  Robert Rich
- C.
  
  Robert Martins
- D.
  
  Robert Dawn
Correct Answer
C. Robert Martins

Explanation
The correct answer is Robert Martins. The solid principles, also known as the SOLID principles, were promoted by Robert C. Martin, also known as Uncle Bob. These principles are a set of guidelines for software development that aim to make software more maintainable, flexible, and scalable. They provide a set of best practices for designing and organizing code, helping developers create software that is easier to understand, modify, and extend.

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2.

The SOLID acronym in Solid Principles was introduced by
- A.
  
  Micheal Feathers
- B.
  
  Micheal Wright
- C.
  
  Micheal Sheep
- D.
  
  Robert C. Martin
Correct Answer
D. Robert C. Martin

Explanation
The SOLID principles were introduced by Robert C. Martin (Uncle Bob), and the acronym was not derived from the names of individuals but rather from the first letter of each of the five principles:
S: Single Responsibility Principle (SRP)
O: Open/Closed Principle (OCP)
L: Liskov Substitution Principle (LSP)
I: Interface Segregation Principle (ISP)
D: Dependency Inversion Principle (DIP)

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3.

Concerning the solid principle, which of these is odd?
- A.
  
  Dependency Inversion Principle
- B.
  
  Liskov Substitution Principle
- C.
  
  Interface Segregation Principle
- D.
  
  Single Command Principle
Correct Answer
D. Single Command Principle

Explanation
The Single Command Principle is odd among the given options because it is not a recognized principle in software development. The Dependency Inversion Principle, Liskov Substitution Principle, and Interface Segregation Principle are all well-known principles in object-oriented programming that promote code modularity, flexibility, and reusability. However, the Single Command Principle does not exist as a commonly accepted principle in the SOLID principles or any other widely recognized software design principles.

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4.

The five design principles make software design more
- A.
  
  Distinct
- B.
  
  Useful
- C.
  
  Autonomous
- D.
  
  Maintainable
Correct Answer
D. Maintainable

Explanation
The five design principles, including maintainability, aim to make software design more effective and efficient. Maintainability refers to the ease with which a software system can be modified, updated, or repaired. A maintainable design ensures that future changes can be made without causing extensive disruptions or requiring significant effort. By prioritizing maintainability, software designers can create systems that are easier to manage and adapt to evolving needs, ultimately increasing the longevity and value of the software.

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5.

Solid principles form a core philosophy for methodologies like
- A.
  
  Code development
- B.
  
  Design development
- C.
  
  Software development
- D.
  
  Agile development
Correct Answer
C. Software development

Explanation
The SOLID principles form a core philosophy for software development methodologies. They are guiding principles that contribute to creating more maintainable, flexible, and scalable software. While they are commonly associated with object-oriented design and programming, the SOLID principles are applicable to various software development methodologies and practices. They provide a foundation for designing robust and adaptable software systems.
While the SOLID principles can certainly be applied in an agile development context, the most accurate and comprehensive answer among the options provided is software development.

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6.

In the single responsibility principle, the responsibility for a class is
- A.
  
  Defined
- B.
  
  Double
- C.
  
  Simple
- D.
  
  Single
Correct Answer
D. Single

Explanation
The single responsibility principle states that a class should have only one reason to change. This means that a class should have only one responsibility or purpose. By having a single responsibility, the class becomes more focused, easier to understand, and less likely to be affected by changes in other parts of the system. This principle promotes better code organization and maintainability.

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7.

In open/close principles, the software entities are open for extension but closed for
- A.
  
  Corrections
- B.
  
  Errors
- C.
  
  Modifications
- D.
  
  Development
Correct Answer
C. Modifications

Explanation
The open/close principles suggest that software entities should be open for extension, meaning that new functionality can be added without modifying existing code. However, they should be closed for modifications, indicating that the existing code should not be changed. This ensures that the software remains stable and reliable, as modifications to existing code can introduce bugs and errors.

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8.

In the Liskov substitution principle, "objects in a program should be replaceable with instances of their
- A.
  
  Subtypes
- B.
  
  Programs
- C.
  
  Codes
- D.
  
  Command
Correct Answer
A. Subtypes

Explanation
The Leskov substitution principle states that objects in a program should be replaceable with instances of their subtypes. This means that if a program is designed to work with a certain type of object, it should also be able to work with any subtype of that object without any issues or unexpected behavior. This principle promotes flexibility and extensibility in software design, allowing for easier maintenance and future enhancements.

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9.

Client-specific interfaces are better than one general-purpose interface in
- A.
  
  Single responsibility principle
- B.
  
  Open/Close principle
- C.
  
  Liskov substitution principle
- D.
  
  Interface segregation principle
Correct Answer
D. Interface segregation principle

Explanation
The Interface Segregation Principle states that clients should not be forced to depend on interfaces they do not use. It promotes the idea of having smaller, more specific interfaces rather than a single general-purpose interface. This allows clients to only depend on the methods that are relevant to them, reducing unnecessary dependencies and potential coupling. By adhering to this principle, code becomes more modular, maintainable, and flexible, as changes to one interface do not affect unrelated clients. Therefore, client-specific interfaces are better than one general-purpose interface in the context of the Interface Segregation Principle.

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10.

Solid principle is also called
- A.
  
  Solid-oriented principle
- B.
  
  Solid-based principle
- C.
  
  Object-oriented principle
- D.
  
  Object-based principle
Correct Answer
C. Object-oriented principle

Explanation
The correct answer is "Object-oriented principle" because the SOLID principles are a set of design principles that are commonly used in object-oriented programming. These principles help to make software systems more maintainable, flexible, and scalable by promoting modular design, separation of concerns, and loose coupling between components. Thus, the term "object-oriented principle" accurately describes the nature and purpose of the SOLID principles.

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