Question 11
Domain 1: Cloud Architecture, Governance, and Risk ManagementAccording to NIST SP 800-145, which of the following is an essential characteristic of cloud computing?
Correct answer: B
Explanation
NIST SP 800-145 lists "rapid elasticity" as one of the five essential characteristics of cloud computing. It defines this as capabilities that can be "rapidly and elastically provisioned and released," often automatically, so resources can scale with demand.
Why each option is right or wrong
A. Hardware ownership by the customer
B. Rapid elasticity
NIST SP 800-145, the NIST Definition of Cloud Computing, identifies five essential characteristics: on-demand self-service, broad network access, resource pooling, rapid elasticity, and measured service. The standard describes rapid elasticity as capabilities that can be elastically provisioned and released, in some cases automatically, so the amount of available resources can scale up or down quickly in response to demand.
C. Fixed pricing models
D. On-premises data center requirement