This repository is a collection of system design concepts, real-world application designs, and interview questions to help you prepare for system design interviews. The goal is to provide a comprehensive resource covering both theoretical concepts and practical system designs.
This repository is organized into two main sections:
- Concepts: Covers the essential concepts needed to understand and design scalable, fault-tolerant, and efficient systems.
- Questions: Contains system design problems and their detailed solutions for real-world applications.
This section includes key system design concepts that are often asked in interviews or required when building scalable systems.
| Concept | Description |
|---|---|
| APIGateway.md | Explains the role of API gateways in microservices architecture. |
| BatchVsStreamProcessing.md | Compares batch processing and stream processing with examples. |
| CAPTheorem.md | Discusses the CAP theorem and its implications in distributed systems. |
| CDN.md | Covers how Content Delivery Networks work and how they improve latency. |
| Caching.md | Provides caching strategies like write-through, write-back, and eviction. |
| ConsensusAlgorithm.md | Explains consensus algorithms like Paxos and Raft in distributed systems. |
| DataPartitioning.md | Explains techniques for partitioning large datasets for scalability. |
| DatabaseIndexing.md | Covers database indexing and how it improves query performance. |
| DistributedLocks.md | Explains how distributed locks are used to coordinate access in distributed systems. |
| LeaderElection.md | Describes the process of leader election in distributed systems. |
| LatencyVsThroughput.md | Discusses trade-offs between latency and throughput in system design. |
| MicroservicesArchitecture.md | Explains the principles and challenges of microservices architecture. |
| WebSocket.md | Covers WebSockets and their use for real-time communication. |
For more concepts, check the concepts folder.
This section includes solutions for designing real-world applications. Each problem includes a detailed analysis, high-level architecture, data flow, and key challenges.
| Application Design | Description |
|---|---|
| CacheSystem.md | Design a scalable cache system with TTL, eviction policies, and persistence. |
| ChatBot.md | Design a chatbot that can handle real-time messaging with NLP integration. |
| Dropbox.md | Design a file storage and sharing system similar to Dropbox. |
| E-CommerceApp.md | Design an e-commerce system that handles transactions, product listings, and inventory. |
| GoogleSearch.md | Design the search engine behind Google Search, with ranking algorithms. |
| Instagram.md | Design a social media platform like Instagram, focusing on photo uploads, stories, and scaling. |
| Netflix.md | Design a video streaming platform like Netflix with high availability and low latency. |
| PushNotification.md | Design a push notification system for real-time delivery across platforms. |
| Twitter.md | Design a social media platform like Twitter with real-time feed and tweet features. |
| Uber.md | Design a ride-hailing service like Uber, handling real-time location tracking and pricing. |
| TaskScheduler.md | Design a task scheduling system that handles distributed tasks and retries. |
For more system design problems, check the questions folder.
- Study Concepts: Start by understanding the concepts that form the foundation of system design. Each concept is detailed with examples and key considerations.
- Practice with Questions: Apply what you've learned by going through the real-world application designs. These problems will help you practice solving open-ended design questions typically asked in interviews.
- Revise Key Topics: Use this repository to revise and refresh your knowledge before interviews or while working on projects that involve system design.
Feel free to contribute to this repository by:
- Adding more system design questions and solutions.
- Improving existing explanations or adding examples.
- Providing better diagrams or architectural representations.
This repository is licensed under the MIT License. See the LICENSE file for more details.
Happy learning and good luck with your system design interviews!