My notes on systems design interviews System design resources Load-balancing Round robin IP Hash Caching CDN Pull Push - Pushes data to CDN but can push data that no user ever requires Types Distributed Local (per jvm, per …) Database schema design Indexes Replication Slave-master replications NoSQL vs. Relational Sharding Vertical - User table, Tweets table, Logs table each in different machines Horizontal NoSQL Types Key-value Wide column Document based Graph based API design Data transport mecahnism Json vs.