AWS Certified Cloud Practitioner (CLF-C02) — Question 551

Which advantage of cloud computing allows users to scale resources up and down based on the amount of load that an application supports?

Answer options

• A. Go global in minutes
• B. Stop guessing capacity
• C. Benefit from massive economies of scale
• D. Trade fixed expense for variable expense

Correct answer: B

Explanation

"Stop guessing capacity" is the cloud benefit that allows systems to automatically scale up or down to match actual workloads, preventing both under-provisioning and over-provisioning. While trading fixed expense for variable expense and benefiting from economies of scale are financial advantages, they do not directly describe the technical ability to scale resources based on application load. Going global in minutes refers to multi-region deployment capabilities rather than local elasticity.