•TOPICS
System Design Topics
InterviewSkool covers 31 system design topics across 176 case studies from FAANG and top tech companies. Pick a topic to start preparing.
Distributed Systems
90 case studies
Real-time
51 case studies
Storage
43 case studies
Data Pipelines
42 case studies
API Design
41 case studies
Databases
38 case studies
Caching
37 case studies
Security
32 case studies
AI / ML
23 case studies
Algorithms
20 case studies
Scheduling
20 case studies
Search
19 case studies
Event Driven
14 case studies
Fintech
14 case studies
Payments
11 case studies
Geospatial
11 case studies
Analytics
11 case studies
Observability
11 case studies
E-commerce
11 case studies
Messaging
10 case studies
CDN
9 case studies
Concurrency
8 case studies
Ads
8 case studies
Frontend
8 case studies
Booking System
6 case studies
Networking
5 case studies
IoT
4 case studies
Media
3 case studies
Media Streaming
3 case studies
Collaboration
3 case studies
Rate Limiting
2 case studies
Frequently Asked Questions
What are the most important system design topics?
The most important system design topics are API Design, Database, Caching, Load Balancing, Message Queues, Scalability, and Availability. These appear in almost every FAANG system design interview.
How many system design topics should I prepare?
Focus on 8-10 core topics first. Master these before moving to advanced topics like Geospatial, Search, or Cost Optimization.
Which system design topics are asked most at FAANG?
Scalability, Database Design, Caching, and Load Balancing are the most frequently tested topics across all FAANG companies. Almost every system design interview involves at least two of these.
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