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SESK: Stuff Everyone Should Know · sesk.info/aplus-cloud-elasticity

In NIST's cloud definition, which trait lets capacity scale out and back in as demand changes?

Rapid elasticity.

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  1. Rapid elasticity ✔
  2. Resource pooling
  3. Measured service

Why: NIST lists rapid elasticity as capabilities that can be provisioned and released, even automatically, to scale outward and inward with demand. Resource pooling is about sharing, and measured service is about metering.

Huh, didn't know that: NIST lists five essential characteristics of cloud computing.

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References

Answer: Rapid elasticity. NIST lists rapid elasticity as capabilities that can be provisioned and released, even automatically, to scale outward and inward with demand. Resource pooling is about sharing, and measured service is about metering.

  1. NIST SP 800-145, The NIST Definition of Cloud Computing nvlpubs.nist.gov/nistpubs/Legacy/SP/nistspecialpublication800-145.pdf
    Rapid elasticity. Capabilities can be elastically provisioned and released, in some cases automatically, to scale rapidly outward and inward commensurate with demand.
    Checked 2026-10-10.

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