I have participated in interview processes at top companies and am sharing my experience with low-level design (LLD) interview questions.
When preparing for a low-level design interview, it’s crucial to focus on key aspects such as understanding the requirements thoroughly.
1. Design patterns/ Design principles :
Design patterns play a significant role, so be familiar with common patterns like Singleton, Factory, Observer, and Strategy and understand when to apply them. Scalability, maintainability, and performance are vital considerations, as a good design should be flexible enough to handle future changes and large-scale usage. The code should follow design principles.
2. Concurrency handling:
Concurrency handling is crucial in scenarios like booking tickets or slots to ensure multiple users can make reservations simultaneously without conflicts or data inconsistencies.
3. Scalability and Extensibility:
- Scalable Design: Ensuring that the design can scale with future changes without major modifications.
- Extensibility: Using techniques like inheritance and interfaces to allow new features to be added with…
