🔥 FAANG-Level High-Level Design (HLD) Study Plan 🚀

This roadmap focuses on FAANG interview preparation, real-world system design, and scalability.

1. Fundamentals of HLD

• Scalability (Horizontal vs Vertical Scaling)
• Latency vs Throughput
• Load Balancing (DNS-based, L4 vs L7 Load Balancing)
• Caching (CDN, Application, Database Caching)
• CAP Theorem (Consistency, Availability, Partition Tolerance)
• Database Sharding & Replication
• Consistency Models (Strong, Eventual, Read-after-write, etc.)
• Message Queues & Event-Driven Architecture

2. Networking & System Communication

• DNS Resolution (Recursive, Iterative Queries)
• TCP vs UDP (When to use each?)
• HTTP vs WebSockets vs gRPC
• Reverse Proxy & Forward Proxy
• CDNs & Edge Caching
• API Gateways (Rate limiting, Authentication, Logging)