Decoupling

AWS SAA-C03 Drill: Event-Driven Decoupling - The Pub/Sub vs. Stream Processing Trade-off

14 December 2025·1068 words·6 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix SNS SQS Kinesis Decoupling Event-Driven Architecture

When faced with extreme message volume spikes (100K msg/sec) and dozens of independent consumers, choosing between SNS+SQS fan-out, Kinesis streams, and autoscaling patterns determines both scalability and cost efficiency.

AWS SAA-C03 Drill: Decoupling Master-Worker Architectures - The Elasticity vs. Complexity Trade-off

14 December 2025·1011 words·5 mins

Architecture Drills AWS SAA-C03 FinOps Decision Matrix Amazon SQS Auto Scaling Decoupling Elasticity

Modernizing a legacy master-worker application requires eliminating single points of failure. This drill explores why queue-based decoupling with demand-driven autoscaling beats scheduled scaling and monolithic coordination patterns.

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