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Cloud computing as defined by the NIST framework is BEST described as a model that provides on-demand network access to a shared pool of configurable computing resources with which key characteristic?
ACompulsory rewriting of every application in a single proprietary language
BMandatory installation of physical servers in the customer's office
CPer-minute manual approval of every CPU cycle by the provider
DRapid elasticity — capacity can be elastically scaled out or in, often automatically, to match demand
Answer & Solution
Correct answer: D. Rapid elasticity — capacity can be elastically scaled out or in, often automatically, to match demand
Rapid elasticity is one of NIST's five essential characteristics (along with on-demand self-service, broad network access, resource pooling, measured service). The other options describe anti-patterns inconsistent with the NIST model.
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