Bird
Raised Fist0

Which of the following statements about the Diamond Problem and its resolution is INCORRECT?

medium🐞 Bug Identification Q14 of Q15
OOP & Design Patterns - Inheritance - Types, Method Resolution Order & Diamond Problem
Which of the following statements about the Diamond Problem and its resolution is INCORRECT?
AThe Diamond Problem occurs when a class inherits from two classes that both inherit from the same base class.
BThe Diamond Problem can be resolved by using virtual inheritance in languages like C++.
CMethod Resolution Order (MRO) is irrelevant to resolving the Diamond Problem.
DWithout proper resolution, the Diamond Problem can cause duplicate base class instances.
Step-by-Step Solution

  1. Step 1: Understand the Diamond Problem

    It arises when a class inherits from two classes that share a common ancestor, causing ambiguity and duplication.

  2. Step 2: Virtual inheritance role

    Virtual inheritance in C++ ensures only one instance of the base class exists, resolving duplication.

  3. Step 3: Role of MRO

    MRO is critical in languages like Python to determine method lookup order and resolve ambiguity.

  4. Step 4: Identify incorrect statement

    Method Resolution Order (MRO) is irrelevant to resolving the Diamond Problem. incorrectly claims MRO is irrelevant, which is false.

  5. Final Answer:

    Option C -> Option C

  6. Quick Check:

    MRO is essential for resolving method lookup in diamond inheritance scenarios.
Quick Trick: MRO is key to diamond resolution in dynamic languages
Common Mistakes:
MISTAKES
  • Ignoring MRO's role in method lookup
  • Confusing virtual inheritance with method resolution
  • Assuming diamond problem only causes ambiguity, not duplication
Trap Explanation:
PITFALL
  • Option D is tempting because some may think MRO is unrelated to the diamond problem, but it is central in many languages. Other options correctly describe the problem and solutions.
Interviewer Note:
CONTEXT
  • Tests candidate's ability to spot misconceptions about diamond problem resolution.
Master "Inheritance - Types, Method Resolution Order & Diamond Problem" in OOP & Design Patterns

2 interactive learning modes - each teaches the same concept differently

SolutionTrace

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More OOP & Design Patterns Quizzes
Command Pattern - Undo/Redo, Request Queuing & Logging - Command Pattern - Undo/Redo, Request Queuing & Logging - Quiz 12easy Composition vs Inheritance - Favour Composition, Why & When - Composition vs Inheritance - Favour Composition, Why & When - Quiz 2easy Design Snake and Ladder Game - LLD End-to-End - Design Snake and Ladder Game - LLD End-to-End - Quiz 13medium Design a Parking Lot - LLD with OOP (Classes, Patterns, Extensibility) - Design a Parking Lot - LLD with OOP (Classes, Patterns, Extensibility) - Quiz 1easy Factory vs Abstract Factory vs Builder - When to Use Each - Factory vs Abstract Factory vs Builder - When to Use Each - Quiz 1easy Interface Segregation & Dependency Inversion - Fat Interfaces & IoC - Interface Segregation & Dependency Inversion - Fat Interfaces & IoC - Quiz 10hard Liskov Substitution Principle - Subtype Behavioural Contract - Liskov Substitution Principle - Subtype Behavioural Contract - Quiz 10hard Prototype Pattern - Deep Copy vs Shallow Copy - Prototype Pattern - Deep Copy vs Shallow Copy - Quiz 7medium Single Responsibility Principle - One Class, One Reason to Change - Single Responsibility Principle - One Class, One Reason to Change - Quiz 11easy Template Method Pattern - Define Skeleton, Override Steps - Template Method Pattern - Define Skeleton, Override Steps - Quiz 5medium