AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A financial analytics company expects their new web application to encounter unpredictable traffic, with occasional surges linked to market events. The engineering department must implement a solution that scales the computational resources up or down in response to changing demand, optimizing for cost-efficiency. Which service should they leverage for this scenario?
Auto Scaling is the correct answer because it provides the functionality of adjusting the number of instances dynamically to cope with the load, ensuring both performance maintenance and cost optimization. Lambda, while it does scale automatically, is event-driven and designed for short-duration workloads, making it less suited for traditional web application hosting. Elastic MapReduce (EMR) focuses on data processing and big data use cases rather than web application traffic fluctuation. Fargate, although it scales easily, is a container management service and not primarily used for instance-level scaling like the situation described.
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