Answer: Rightsizing

AWS Compute Optimizer is a service that helps you identify optimal AWS resources for your workloads to reduce costs and improve performance by analyzing resource utilization metrics. This concept is known as **rightsizing** - the practice of matching instance types and sizes to your workload performance and capacity requirements at the lowest possible cost. **Key points:** - **Rightsizing** involves analyzing your workloads and adjusting the size of your instances to match your actual needs - AWS Compute Optimizer analyzes historical utilization metrics to recommend optimal AWS resources - This helps eliminate over-provisioning and reduces costs while maintaining performance - **Security validation** refers to security assessment tools like AWS Security Hub - **Elasticity** refers to the ability to scale resources up or down based on demand - **Global reach** refers to AWS's worldwide infrastructure and services availability

Author: Ritesh Yadav