SAP-C02 - Design for New Solutions - Section 2.4
Design a reliability strategy using Multi-AZ and multi-Region patterns, EC2 Auto Scaling and loosely coupled integration with Amazon SQS, Amazon SNS and AWS Step Functions.
Design reliable, loosely coupled architectures using Multi-AZ deployments, EC2 Auto Scaling groups, Amazon SQS queues, and Amazon SNS topics to absorb failures and traffic spikes without cascading. Recognise where AWS Step Functions orchestrates long-running workflows and when a queue versus a direct invocation improves fault tolerance.
Multi-AZEC2 Auto ScalingAmazon SQSLoose coupling
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