Covers JVM memory, garbage collection, transactions, normalization, query tuning, indexing strategies, concurrency control, connection pooling, deadlocks, caching, HashMap collision handling, equals-hashCode contract, and solving problems like duplicate detection, grouping, and data aggregation efficiently.

There were 5 rounds- aptitude,coding, two technical round and then leadership round. Question were asked on project,oops,sql and testing. I was asked to write code too in technical round. Only 1 student was selected out of 206