Single Responsibility Principle Quiz

  • Grade 11th
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| By Thames
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| Attempts: 21 | Questions: 15 | Updated: May 1, 2026
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1. Which of the following is a violation of the Single Responsibility Principle?

Explanation

A class that handles both user authentication and database connections violates the Single Responsibility Principle because it has multiple reasons to change: modifications in authentication logic or database management. This principle dictates that a class should have only one reason to change, promoting better maintainability and separation of concerns.

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About This Quiz
Single Responsibility Principle Quiz - Quiz

This Single Responsibility Principle Quiz tests your understanding of one of the five core SOLID principles in software design. Learn how the SRP guides developers to create classes and functions with a single, well-defined purpose. Master this fundamental concept to write cleaner, more maintainable code that's easier to test and... see moremodify. see less

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2. True or False: The Single Responsibility Principle encourages breaking large classes into smaller, focused ones.

Explanation

The Single Responsibility Principle (SRP) advocates that a class should have only one reason to change, meaning it should focus on a single task or responsibility. By breaking large classes into smaller, more focused ones, SRP enhances maintainability, readability, and reduces the risk of unintended side effects when changes are made.

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3. Which of the following best describes the relationship between SRP and code maintainability?

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4. What does the Single Responsibility Principle (SRP) state?

Explanation

The Single Responsibility Principle (SRP) emphasizes that a class should focus on a single task or responsibility. This approach simplifies maintenance and enhances code clarity, as changes in one area of functionality won't inadvertently affect other areas. By adhering to SRP, developers can create more modular and manageable codebases.

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5. Which of these represents good SRP design?

Explanation

Good SRP (Single Responsibility Principle) design is achieved by separating concerns into distinct classes, such as UserValidator, UserRepository, and EmailSender. Each class focuses on a specific responsibility, making the codebase easier to maintain, test, and extend, while reducing the risk of changes in one area affecting others.

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6. What is the primary benefit of applying SRP in your code?

Explanation

Applying the Single Responsibility Principle (SRP) ensures that each module or class in your code has one specific purpose. This clarity enhances readability, simplifies testing, and facilitates maintenance, as changes in one area are less likely to impact others. Consequently, it leads to more organized and manageable code overall.

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7. Which scenario best demonstrates a violation of SRP?

Explanation

A Logger class that manages both file writing and console output violates the Single Responsibility Principle (SRP) because it combines two distinct functionalities. According to SRP, a class should have only one reason to change, meaning it should focus on a single task. By handling multiple outputs, the Logger class becomes less cohesive and harder to maintain.

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8. True or False: A class that manages both user data and file I/O follows the Single Responsibility Principle.

Explanation

A class that manages both user data and file I/O violates the Single Responsibility Principle, which states that a class should have only one reason to change. By handling both responsibilities, the class becomes more complex and harder to maintain, as changes in one area could inadvertently affect the other.

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9. A class with multiple reasons to change likely violates the ____.

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10. Which principle is closely related to SRP and helps reduce coupling between classes?

Explanation

The Interface Segregation Principle (ISP) emphasizes that clients should not be forced to depend on interfaces they do not use. By promoting smaller, more specific interfaces, ISP reduces the coupling between classes, allowing for easier maintenance and greater flexibility in code, which aligns closely with the goals of the Single Responsibility Principle (SRP).

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11. True or False: SRP means each method should do exactly one thing.

Explanation

SRP, or Single Responsibility Principle, asserts that a method should have one reason to change, meaning it should focus on a single task or functionality. This promotes code clarity, maintainability, and reusability, ensuring that each method is responsible for a distinct aspect of the program's behavior.

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12. A class responsible for only sending emails follows the ____.

Explanation

A class that focuses solely on sending emails adheres to the Single Responsibility Principle, which states that a class should have only one reason to change. By limiting its functionality to a single task, the class enhances maintainability, reduces complexity, and promotes clearer design, making it easier to modify or test without affecting other functionalities.

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13. A class that only validates user input has ____ responsibility.

Explanation

A class that solely focuses on validating user input has a single responsibility: to ensure that the input data meets specific criteria before further processing. This aligns with the Single Responsibility Principle, which states that a class should have one reason to change, promoting better maintainability and clarity in the codebase.

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14. A 'reason to change' in SRP refers to ____.

Explanation

A 'reason to change' in the context of Stakeholder Requirements Planning (SRP) indicates the necessity for adjustments based on the needs, expectations, or feedback from stakeholders. Understanding these requirements helps ensure that changes align with stakeholder interests, ultimately leading to improved project outcomes and satisfaction.

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15. Refactoring a large class into multiple focused classes is an example of applying ____.

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Which of the following is a violation of the Single Responsibility...
True or False: The Single Responsibility Principle encourages breaking...
Which of the following best describes the relationship between SRP and...
What does the Single Responsibility Principle (SRP) state?
Which of these represents good SRP design?
What is the primary benefit of applying SRP in your code?
Which scenario best demonstrates a violation of SRP?
True or False: A class that manages both user data and file I/O...
A class with multiple reasons to change likely violates the ____.
Which principle is closely related to SRP and helps reduce coupling...
True or False: SRP means each method should do exactly one thing.
A class responsible for only sending emails follows the ____.
A class that only validates user input has ____ responsibility.
A 'reason to change' in SRP refers to ____.
Refactoring a large class into multiple focused classes is an example...
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