Exam AWS Certified Cloud Practitioner topic 1 question 519 discussion

Right size services based on capacity requirements https://wa.aws.amazon.com/wellarchitected/2020-07-02T19-33-23/wat.pillar.costOptimization.en.html

el principal ahorro se consigue uniendo las diferentes cuentas para reducir gastos por uso. las instancias no aseguran ahorro por si solas si tienes un uso variable. respuesta correcta c

A. Right size services based on capacity requirements "Right sizing is the most effective way to control cloud costs. It involves continually analyzing instance performance and usage needs and patterns—and then turning off idle instances and right sizing instances that are either overprovisioned or poorly matched to the workload. Because your resource needs are always changing, right sizing must become an ongoing process to continually achieve cost optimization." https://aws.amazon.com/aws-cost-management/aws-cost-optimization/right-sizing/

A is the answer.

A. Right size services based on capacity requirements One of the cost efficiency principles related to the AWS Cloud is to right-size services based on capacity requirements. This means that you should choose the appropriate instance type and size for your workload, and adjust it as needed, to ensure that you are not over- or under-provisioning resources. This can help you to minimize costs and optimize performance.

https://docs.aws.amazon.com/general/latest/gr/aws_tagging.html Under Tagging AWS resources: >> Tags for cost allocation : AWS Cost Explorer and detailed billing reports let you break down AWS costs by tag. Typically, you use business tags such as cost center/business unit, customer, or project to associate AWS costs with traditional cost-allocation dimensions. But a cost allocation report can include any tag. This lets you associate costs with technical or security dimensions, such as specific applications, environments, or compliance programs. The following is an example of a partial cost allocation report.

As a consolidated bill can bring the column discount, which is cost efficiency. A " based on capacity requirements" should be based on demand.

I would go with A for this one as it is on about cost efficiency. Having a larger server than is needed wouldn't be cost effective.