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ACCA Strategic Professional · Strategic Business Leader · Cloud, mobile and smart technology

Tamsin Events has seasonal demand: its booking site needs ten times normal computing capacity for two months a year. Previously it bought servers to cover the peak, which sat idle most of the year. Which cloud characteristic most directly addresses this problem?

Rapid elasticity addresses the problem. Tamsin can scale computing capacity up for the two-month peak and release it afterwards, paying only for what it uses, instead of owning idle servers for the rest of the year.

  1. ARapid elasticity, scaling resources up and down with demand and paying only for useCorrect
  2. BMulti-tenancy, which gives Tamsin exclusive hardware
  3. CData sovereignty, which fixes data location
  4. DSingle sign-on, which removes the need for capacity planning

Explanation

Elasticity lets capacity expand for the peak and contract afterwards, converting fixed capital cost into variable operating cost. Multi-tenancy means shared resources, not exclusive hardware, and the other options do not address capacity.

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