Readme

System Design Cheatsheets Collection

Generated on: 2025-07-13 02:58:29
Total Cheatsheets: 36/36
Coverage: Foundational to Advanced System Design Topics

📚 Overview

This collection contains comprehensive System Design cheatsheets organized by difficulty level. Each cheatsheet includes core concepts, diagrams, trade-offs, and real-world examples.

🎯 How to Use

1. Start with Foundational if you’re new to system design.
2. Progress to Intermediate for more complex concepts.
3. Advance to Advanced for distributed systems and large-scale architecture.

📂 Directory Structure

system_design_cheatsheets/
├── foundational/
├── intermediate/
├── advanced/
└── README.md

📖 Topic Index

🎓 Foundational Level (10 topics)

• Scalability Concepts (Vertical vs. Horizontal)
• High Availability and Fault Tolerance
• Load Balancing Strategies
• Caching Patterns and Techniques
• Database Types (SQL vs. NoSQL)
• Content Delivery Networks (CDN)
• Message Queues and Pub/Sub
• API Design (REST, GraphQL, gRPC)
• Security Fundamentals in System Design
• Latency and Throughput

🎓 Intermediate Level (10 topics)

• Database Sharding and Partitioning
• Consistent Hashing
• Distributed Caching
• Rate Limiting and Throttling
• Service Discovery
• Circuit Breaker Pattern
• Idempotency
• CAP Theorem
• Microservices Architecture
• Event-Driven Architecture

🎓 Advanced Level (10 topics)

• Distributed Transactions and Sagas
• Leader Election
• Gossip Protocol
• Quorum and Consensus Algorithms (Paxos, Raft)
• Stream Processing (Kafka, Flink)
• Search and Indexing (Elasticsearch)
• Blob Storage (S3, GCS)
• Global Scale Architectures
• Designing for Cost Optimization
• Observability (Logging, Metrics, Tracing)

🎓 Practical Design Problems Level (6 topics)

• [Design a Rate Limiter](./practical design problems/01_Design_a_Rate_Limiter.md)
• [Design a URL Shortener](./practical design problems/02_Design_a_URL_Shortener.md)
• [Design a News Feed System](./practical design problems/03_Design_a_News_Feed_System.md)
• [Design a Web Crawler](./practical design problems/04_Design_a_Web_Crawler.md)
• [Design a Typeahead Suggestion System](./practical design problems/05_Design_a_Typeahead_Suggestion_System.md)
• [Design a Distributed Key-Value Store](./practical design problems/06_Design_a_Distributed_Key-Value_Store.md)

🚀 Quick Start Examples

Load Balancing

• Concept: Distributing incoming network traffic across multiple servers.
• Diagram:

  graph TD
      A[Client] --> B(Load Balancer);
      B --> C[Server 1];
      B --> D[Server 2];
      B --> E[Server 3];

Caching

• Concept: Storing copies of files or data in a temporary storage location (cache) so that they can be accessed more quickly.
• Diagram:

  graph TD
      A[Client] -->|Request| B(Application);
      B -->|Cache Miss| C(Cache);
      C -->|Data not found| D(Database);
      D -->|Data| C;
      C -->|Data| B;
      B -->|Response| A;

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Happy Designing! 🎯