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Process, capacity estimation, caching, CAP, scalability, and observability.Mon, 10 Aug 2026 03:25:00 GMThttps://java-guru.dev/en/posts/interview/kafka-senior/https://java-guru.dev/en/posts/interview/kafka-senior/Event-driven systems on Kafka — delivery semantics, replication, partitioning for order, consumer lag, and the dead-letter queue every production consumer needs.Mon, 10 Aug 2026 03:20:00 GMThttps://java-guru.dev/en/posts/interview/database-senior/https://java-guru.dev/en/posts/interview/database-senior/The database layer decides real-world scale. 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