Your company has been using an on-premises server that handles an increasingly variable workload, resulting in either over-provisioning during low traffic or potential loss of service during unexpected spikes. After migrating to the AWS Cloud, which technique should be used to ensure you are utilizing the most cost-effective resources that align with your workload demands?
Upgrade to the largest available instance types to handle unexpected high traffic.
Decouple application components to separate services, enabling each to be scaled independently.
Utilize rightsizing principles to choose the most cost-effective instance types and configurations that meet the workload's performance demands.
Implement horizontal scaling and add more instances of the current type to manage variable workloads.
Rightsizing is the process of analyzing your workloads and finding the smallest or least expensive resource configuration that still meets your required performance and capacity needs. It can lead to significant cost savings by avoiding over-provisioning. Upgrading to larger instance types does not address the inefficiency caused by over-provisioning during periods of low demand. Horizontal scaling is not a rightsizing strategy, but rather a technique to handle increased load by adding more instances. Decoupling systems allows for independent scaling, however, it does not inherently optimize the cost of individual components.
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AWS Cloud Practitioner CLF-C02
Cloud Concepts
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