SAA-C03 - Design Resilient Architectures - Section 2.3
Design elastic capacity using EC2 Auto Scaling, scaling policies and serverless scaling to match demand.
Describe EC2 Auto Scaling groups and explain how target tracking scaling policies automatically adjust capacity to keep a chosen metric - such as average CPU utilisation - at a target value. Recognise that AWS Lambda scales automatically by running concurrent invocations without pre-provisioning instances, making it well-suited for unpredictable, spiky workloads.
EC2 Auto ScalingTarget tracking scalingAWS LambdaElasticity
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