Design Principles Expert
Explain Dependency Injection.
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Dependency Injection focuses on optimizing code for performance.
Dependency Injection is about writing extensive tests.
Dependency Injection is a design pattern that allows a class to receive its dependencies from an external source rather than creating them.
Dependency Injection means minimizing the use of classes.
What is the "Principle of Idempotence" in software design? How does it contribute to robust and reliable systems?
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The 'Principle of Idempotence' ensures high performance in algorithms.
The 'Principle of Idempotence' focuses on code documentation.
The 'Principle of Idempotence' is about reducing code complexity.
The 'Principle of Idempotence' means that an operation can be applied multiple times without changing the result beyond the initial application.
Explain the "Principle of Least Privilege" in software security and design. How does it relate to the principle of encapsulation?
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The 'Principle of Least Privilege' focuses on thorough documentation.
The 'Principle of Least Privilege' is about optimizing code for speed.
The 'Principle of Least Privilege' means minimizing code complexity.
The 'Principle of Least Privilege' involves giving the minimum level of access necessary, promoting security and encapsulation.
Explain the concept of "Defensive Programming" and its relationship with software design principles.
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Defensive Programming focuses on using the latest libraries.
Defensive Programming means writing extensive documentation.
Defensive Programming is about optimizing code for performance.
Defensive Programming involves writing code that anticipates and handles potential errors gracefully.
How can you ensure that a software system maintains adherence to design principles as it evolves over time?
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Ensuring adherence to design principles can be achieved through regular code reviews and automated testing.
Adherence to design principles is maintained by writing extensive documentation.
Design principles are maintained by avoiding the use of design patterns.
Adherence to design principles is achieved by frequent refactoring.
Explain the Law of Demeter.
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The Law of Demeter focuses on minimizing memory usage.
The Law of Demeter means optimizing code for speed.
The Law of Demeter suggests writing documentation for every class.
The Law of Demeter advises that objects should only interact with their immediate friends.
What are some common code smells that may indicate violations of software design principles?
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Common code smells include duplicated code, large classes, and long methods.
Common code smells include using modern libraries and frameworks.
Common code smells are about missing documentation.
Common code smells include too many comments.
What do you understand by the Open-Closed Principle (OCP)?
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The Open-Closed Principle states that software entities should be open for extension but closed for modification.
The Open-Closed Principle suggests using only open-source libraries.
The Open-Closed Principle means code should be easily readable.
The Open-Closed Principle is about testing code extensively.
What is the "Principle of Least Astonishment" in user interface design?
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The 'Principle of Least Astonishment' suggests that a system should behave in a way that users expect.
The 'Principle of Least Astonishment' means minimizing the number of features in software.
The 'Principle of Least Astonishment' focuses on code optimization.
The 'Principle of Least Astonishment' means avoiding the use of complex algorithms.
Explain the concept of "High Cohesion and Low Coupling" in software design.
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High Cohesion means each module has a single responsibility, while Low Coupling means minimal dependencies between modules.
High Cohesion means faster execution, Low Coupling means better memory management.
High Cohesion is about reducing code duplication, Low Coupling is about reusing modules.
High Cohesion focuses on user interfaces, Low Coupling focuses on databases.
Explain Separation of Concerns.
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Separation of Concerns means ensuring data consistency.
Separation of Concerns focuses on optimizing code for speed.
Separation of Concerns involves dividing a program into distinct sections, each addressing a separate concern.
Separation of Concerns is about documenting every function in detail.
Explain composition over inheritance.
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Composition over inheritance suggests writing extensive tests first.
Composition over inheritance favors using object composition rather than inheritance.
Composition over inheritance encourages using design patterns.
Composition over inheritance means preferring simple algorithms.
What is "Cohesion" in software design, and why is it important?
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Cohesion describes the speed at which code executes.
Cohesion means ensuring code compatibility with different systems.
Cohesion refers to how closely related the responsibilities of a single module are.
Cohesion is about using consistent naming conventions in code.
What is the "Tell, Don't Ask" principle in object-oriented programming?
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The 'Tell, Don't Ask' principle means documenting code thoroughly.
The 'Tell, Don't Ask' principle means using encapsulation for data protection.
The 'Tell, Don't Ask' principle advises to command objects rather than querying their state.
The 'Tell, Don't Ask' principle suggests avoiding global variables.
Explain TDD.
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TDD stands for 'Test-Driven Development,' where tests are written before code.
TDD is a way to debug software effectively.
TDD stands for 'Time-Driven Development' focused on timely delivery.
TDD emphasizes writing detailed documentation first.
Explain the Fail-Fast Principle.
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The Fail-Fast Principle suggests that a system should immediately report any failure.
The Fail-Fast Principle means delaying error reporting to gather more data.
The Fail-Fast Principle encourages redundancy in code.
The Fail-Fast Principle stands for implementing fallback mechanisms.
What is the "Law of Big-O Notation," and why is it important in algorithm design?
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The 'Law of Big-O Notation' helps in writing secure code.
The 'Law of Big-O Notation' dictates the structure of databases.
The 'Law of Big-O Notation' is used to predict software bugs.
The 'Law of Big-O Notation' measures the efficiency of an algorithm in terms of time and space complexity.
Explain YANGI.
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YANGI emphasizes using newer technologies in development.
YANGI means to frequently refactor code for clarity.
YANGI stands for 'You Aren't Gonna Need It' and advises against adding functionality until necessary.
YANGI stands for 'Yet Another New Great Idea' in software innovation.
Explain KISS.
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KISS stands for 'Keep It Safe and Secure' in software.
KISS refers to continuously integrating code changes.
KISS emphasizes using sophisticated algorithms for better performance.
KISS stands for 'Keep It Simple, Stupid' and promotes simplicity in design.
Explain DRY.
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DRY refers to keeping your data storage minimal.
DRY stands for 'Don't Repeat Yourself' and emphasizes reducing repetition in code.
DRY means to make your code robust against errors.
DRY encourages writing code that is easy to understand.
What is SOLID?
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A principle to keep code simple and straightforward.
A methodology for testing software through unit tests.
A set of five design principles intended to make software designs more understandable, flexible, and maintainable.
A way to develop software using Agile methodologies.