Quizzes
Self play is the default. Pick a quiz and start.
System Design
Scaling 101
PreloadedFundamentals of system design - scaling, load balancing, caching, and more.
10 questions~10 mincode: SYSD1
Database Design
PreloadedSQL vs NoSQL, indexing, replication, and database design patterns.
10 questions~10 mincode: SYSD2
Database Design Deep Dive
PreloadedAdvanced database design - indexing strategies, ACID vs BASE, replication, sharding, and trade-offs for system design interviews.
10 questions~10 mincode: SYSD2
API Design & Microservices
PreloadedAdvanced API design patterns, REST vs GraphQL, service communication, saga pattern, and API gateways for system design.
10 questions~10 mincode: SYSD3
Distributed Systems Patterns
PreloadedAdvanced distributed systems - Paxos/Raft consensus, leader election, CQRS, event sourcing, and consistency patterns.
10 questions~10 mincode: SYSD4
High-Impact Production Scenarios
PreloadedReal-world production challenges - rate limiting, SPOF, latency, multi-region, and incident response patterns.
10 questions~10 mincode: SYSD5