64 System Design Interview Questions, Ranked From Easiest to Hardest

The article provides a structured approach to tackling system design interview questions by categorizing them into three tiers based on complexity and relevance. Here's a summary:

Tier 1: Basic Concepts (Examples)

• Design Dropbox: Focuses on client-server interaction, chunking, deduplication, delta sync, conflict resolution.
• Design Yelp or Nearby Friends: Introduces geospatial indexing concepts like Geohashes, quadtrees, and S2 cells.

Tier 2: Modern Systems (Examples)

• Design Google Docs: Involves operational transforms or CRDTs for real-time collaboration.
• Design a Collaborative Whiteboard Like Miro: Extends the complexity of Google Docs with a 2D plane data model and tighter latency requirements.

Tier 3: Advanced Concepts (Examples)

• Design ChatGPT: Covers GPU scheduling, KV cache reuse, streaming token responses, conversational state management.
• Design a Notification System: Focuses on managing user preferences across multiple channels like push notifications, email, SMS, in-app notifications.

Each tier builds upon the previous one, introducing more complex and modern challenges. Tier 1 questions are foundational, while Tier 3 delves into cutting-edge

Read the full article at DEV Community

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