Low-Level Design Tutorial 0/42 lessons ~6 min read Lesson 40
Common Interview Questions
Searchable LLD interview question bank — OOP, SOLID, UML, design patterns, parking lot, ATM, elevator, and interview strategy.
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Focus
14 guided sections
Practice signal
Concept-first lesson
Career prep
Interview Q&A included
Introduction
This bank contains 55 LLD interview questions with concise model answers. Topics include OOP, SOLID, UML, design patterns, and classic problems (parking lot, ATM, elevator, booking systems).
How to use this bank
- Pick a category (e.g. Parking Lot) and practice answering out loud in 2–3 minutes per question.
- Search for keywords: SRP, composition, state diagram, Strategy, seat locking.
- Pair with Module 7 lessons for full class designs before mock interviews.
Interactive Q&A bank
LLD Interview Bank
55 questions · 11 topics · SOLID, patterns & classic problems
Interactive
FUN LLD Fundamentals
HLD vs LLD, requirements, design process.
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