AWS Service: AWS Auto Scaling
Question: What is AWS Auto Scaling, and how does it work to automatically adjust resources based on demand?
Answer:
AWS Auto Scaling is a service that automatically adjusts the capacity of Amazon EC2 instances, Spot Instances, and Amazon ECS tasks in response to changes in demand for your application. Auto Scaling can help maintain application availability and reduce costs by dynamically adjusting capacity based on user traffic, operational events, or even custom metrics.
Auto Scaling works by monitoring the application load or custom metrics, and then automatically adjusting the number of instances or tasks to maintain performance and meet demand. Auto Scaling can scale up or down based on pre-defined policies or custom metrics, and can also integrate with other AWS services like Elastic Load Balancing to balance traffic across instances. Additionally, Auto Scaling can use predictive scaling to automatically anticipate demand and proactively adjust capacity before traffic increases.
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