Which is a key benefit of running workloads on AWS compared to on-premises data centers?
A.Trade capital expense for variable expense — pay only for what you use
Correct. CapEx → OpEx and pay-as-you-go is the foundational cloud benefit.
B.Applications automatically become more secure with no configuration
Security still requires customer configuration under the shared model.
C.All AWS services are free below a usage threshold
AWS has a Free Tier, but most services bill beyond it — 'all free' is wrong.
D.AWS eliminates the need for any IT staff
AWS reduces undifferentiated heavy lifting, but staff are still needed.
Why this answer
The core cloud economics benefit: you stop guessing capacity and paying upfront for hardware (CapEx) and instead pay variable, consumption-based cost (OpEx) that scales with actual usage.
Correct answer: A · Last reviewed 2026-10-26
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