System Design HLD & LLD Interview Master Guide

Master High Level Design (HLD) and Low Level Design (LLD) interviews with 350+ step-by-step system architecture blueprints. ### Highlights: - **HLD Core Foundations:** Load Balancing, Consistency Models (CAP Theorem), Database Sharding, Caching Strategies (Write-Through vs Write-Back), Message Queues (Kafka vs RabbitMQ). - **Real-World Case Studies:** - Designing a Global Rate Limiter (Token Bucket vs Leaky Bucket vs Sliding Window) - Designing YouTube / Netflix Video Streaming (Adaptive Bitrate, CDN Caching) - Designing Distributed Key-Value Store (Consistent Hashing, Gossip Protocol) - Designing Real-time Chat App (WebSockets, Redis Pub/Sub)