[Solved] Which checklist item is ESSENTIAL to verify that an LLD supports easy future enhancements? - Ans: Use of well-defined interfaces and abstraction layers | LLD

LLD - Advanced LLD Concepts

Which checklist item is ESSENTIAL to verify that an LLD supports easy future enhancements?

AIncluding detailed comments for every line of code

BMinimizing the number of classes to reduce complexity

CUse of well-defined interfaces and abstraction layers

DEnsuring all methods are static for simplicity

Step-by-Step Solution

Solution:

Step 1: Understand extensibility
Extensibility is best supported by clear interfaces and abstraction to allow adding features without modifying existing code.
Step 2: Evaluate options
Minimizing classes or static methods may reduce flexibility; excessive comments do not guarantee extensibility.
Final Answer:
Use of well-defined interfaces and abstraction layers -> Option C
Quick Check:
Interfaces enable easy extension without code changes [OK]

Quick Trick: Check for interfaces and abstractions to ensure extensibility [OK]

Common Mistakes:

MISTAKES

Master "Advanced LLD Concepts" in LLD

9 interactive learning modes - each teaches the same concept differently

More LLD Quizzes

Which checklist item is ESSENTIAL to verify that an LLD supports easy future enhancements?