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What is auto-scaling? How does it work?
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Answer / Neelam Verma
Auto Scaling is a feature of Amazon Web Services that allows you to automatically adjust the number of Amazon Elastic Compute Cloud (EC2) instances running in response to changes in demand. Auto Scaling groups launch and terminate EC2 instances based on the defined scaling policies.nnTo enable Auto Scaling, follow these steps:n1. Create an Auto Scaling group that specifies the desired instance configuration, scaling policies, and other settings.n2. Configure the scaling policies to scale in (reduce capacity) when CPU utilization is below a certain threshold or scale out (increase capacity) when CPU utilization is above a certain threshold.n3. Add tags to the instances to identify them for Auto Scaling purposes.n4. Test the Auto Scaling group by simulating load changes and verifying that the instances are launched and terminated as expected.
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