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An on-demand pay-as-you-go pricing model in the cloud encourages which architectural pattern?
APermanently over-provisioning capacity 10× expected peak
BManually adjusting capacity once per year regardless of demand swings
CAuto-scaling capacity tightly to actual demand so you only pay for what you use
DBuying capacity in 10-year up-front contracts only
Answer & Solution
Correct answer: C. Auto-scaling capacity tightly to actual demand so you only pay for what you use
Pay-as-you-go rewards elasticity — match supply to demand so the bill scales with usage. Over-provisioning, annual manual changes, or decade-long up-front contracts all defeat the model.
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