200-301 · Question #940
In a cloud-computing environment what is rapid elasticity?
The correct answer is B. automatic adjustment of capacity based on need. Rapid elasticity is a fundamental characteristic of cloud computing, enabling resources to be quickly scaled up or down to meet fluctuating demand.
Question
Options
- Acontrol and monitoring of resource consumption by the tenant
- Bautomatic adjustment of capacity based on need
- Cpooling resources in a multitenant model based on need
- Dself-service of computing resources by the tenant
How the community answered
(49 responses)- A2% (1)
- B88% (43)
- C4% (2)
- D6% (3)
Why each option
Rapid elasticity is a fundamental characteristic of cloud computing, enabling resources to be quickly scaled up or down to meet fluctuating demand.
Control and monitoring of resource consumption by the tenant is related to 'measured service,' another cloud characteristic.
Rapid elasticity refers to the ability of cloud systems to provision and de-provision computing resources automatically and quickly, often in an automated fashion, to match changes in workload demand without manual intervention. This allows for dynamic scaling of capacity, both outward (scaling out) and inward (scaling in).
Pooling resources in a multitenant model is a characteristic known as 'resource pooling,' which enables multiple customers to share physical resources.
Self-service of computing resources by the tenant is known as 'on-demand self-service,' allowing users to provision resources without human interaction from the provider.
Concept tested: Cloud computing characteristic: Rapid Elasticity
Source: https://nvlpubs.nist.gov/nistpubs/legacy/sp/nistspecialpublication800-145.pdf
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