›What is the difference between microservices and monolithic architecture?Middle#ArchitectureDetails →
›Design offline sync for a learning app: how do you resolve conflicts?Senior#Scaling#Conflict#DataDetails →
›Design a high-volume event-tracking pipeline for reports and ML — which stack?Senior#Scaling#Events#Data#StreamsDetails →
›Real-time revenue analytics over millions of transactions/day: how?Senior#Database#Real TimeDetails →
›Store & query transaction history for hundreds of millions of accountsSenior#Scaling#DatabaseDetails →
›Migrate a 10TB database with zero downtime: what is the plan?Senior#Data Migration#DatabaseDetails →
›How do you export a huge dataset without impacting the live system?Middle#Performance#DatabaseDetails →
›How do you prevent deadlocks with thousands of concurrent transactions?Middle#Concurrency#DatabaseDetails →
