When designing Instagram's photo storage system, why use Blob storage?
Why use consistent hashing in a distributed cache system?
What's the purpose of a rate limiter in API design?
Why implement a Load Balancer in a web architecture?
When designing Twitter's feed system, why use a fanout service?
Why use a message queue in a payment processing system?
When designing Google Drive, why use chunked file transfer?
Why use Redis in a real-time leaderboard system?
When designing WhatsApp, why use WebSockets?
Why use Content Delivery Networks (CDNs) for static assets in global applications?
When designing Netflix's video streaming system, why implement adaptive bitrate streaming?
Why use event sourcing in a banking transaction system?
When designing Uber's dispatch system, why use a quadtree for geospatial indexing?
Why implement Circuit Breakers in microservices architecture?
When designing Stripe's payment system, why use idempotency keys?
Why use Blue-Green deployment in large-scale applications?
When designing Discord's real-time communication system, why use sharding?
Why use Bloom filters in large-scale caching systems?
When implementing distributed consensus in systems like etcd, why use algorithms like Raft?
Why implement database sharding in high-traffic applications?
When implementing a major feature in Spotify's recommendation system, why use feature flags?
Why implement CQRS (Command Query Responsibility Segregation) in complex applications?
When releasing a new search algorithm at Google, why use canary deployments?
Why implement an API Gateway in a microservices architecture?
When designing database indexes for an e-commerce platform, why carefully choose indexed columns?
Why implement the Saga pattern in a distributed e-commerce transaction flow?
When designing a real-time analytics platform, why choose an event-driven architecture?
When a systems design interviewer asks about the CAP theorem, what are they really asking about?
Why might you choose GraphQL over REST for a mobile application API?
When designing a data-intensive application, why consider polyglot persistence?