Table of contents

• Getting Started

  • What is system design?

• Chapter I

  • IP
  • OSI Model
  • TCP and UDP
  • Domain Name System (DNS)
  • Load Balancing
  • Clustering
  • Caching
  • Content Delivery Network (CDN)
  • Proxy
  • Availability
  • Scalability
  • Storage

• Chapter II

  • Databases and DBMS
  • SQL databases
  • NoSQL databases
  • SQL vs NoSQL databases
  • Database Replication
  • Indexes
  • Normalization and Denormalization
  • ACID and BASE consistency models
  • CAP theorem
  • PACELC Theorem
  • Transactions
  • Distributed Transactions
  • Sharding
  • Consistent Hashing
  • Database Federation

• Chapter III

  • N-tier architecture
  • Message Brokers
  • Message Queues
  • Publish-Subscribe
  • Enterprise Service Bus (ESB)
  • Monoliths and Microservices
  • Event-Driven Architecture (EDA)
  • Event Sourcing
  • Command and Query Responsibility Segregation (CQRS)
  • API Gateway
  • REST, GraphQL, gRPC
  • Long polling, WebSockets, Server-Sent Events (SSE)

• Chapter IV

  • Geohashing and Quadtrees
  • Circuit breaker
  • Rate Limiting
  • Service Discovery
  • SLA, SLO, SLI
  • Disaster recovery
  • Virtual Machines (VMs) and Containers
  • OAuth 2.0 and OpenID Connect (OIDC)
  • Single Sign-On (SSO)
  • SSL, TLS, mTLS

• Chapter V

  • System Design Interviews
  • URL Shortener
  • WhatsApp
  • Twitter
  • Netflix
  • Uber

• Appendix

  • Next Steps
  • References