<ul><li>Moving from on-premises to the cloud doesn't solve cost optimization challenges for organizations.</li><li>Creating EC2 instances and forgetting to delete associated snapshots can lead to unnecessary costs in AWS.</li><li>To address this issue, a lambda function can be created to automatically delete snapshots not attached to any volume or EC2 instance.</li><li>By using Boto3 module in Python, lambda functions can be executed to optimize costs by removing stale snapshots.</li></ul>

AWS Cloud Cost Optimization- Day16.

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