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Difficulty: MediumCloud Characteristics and Features (Elasticity, On-Demand, Resource Pooling)

An enterprise logistics company hosts its routing calculation platform in a cloud environment. During morning dispatch periods, processing demands spike significantly, prompting the cloud infrastructure to automatically provision additional compute capacity to maintain performance. Once dispatch calculations complete, the system automatically decommissions the extra compute nodes. Which cloud characteristic does this operational deployment demonstrate?

  1. Rapid elasticityAnswer
  2. B
    Resource pooling
  3. C
    On-demand self-service
  4. D
    Measured service

Answer

Rapid elasticity is demonstrated because computing resources are automatically provisioned and decommissioned in response to real-time workload fluctuations.
Rapid elasticity refers to the capability of a cloud system to automatically provision and release computing resources dynamically according to demand. Because the scenario describes compute nodes expanding automatically during peak dispatch surges and contracting when traffic normalizes, rapid elasticity is the characteristic demonstrated.

Step-by-Step Solution

1
Analyze the workload requirement described in the scenario.
The infrastructure automatically provisions additional processing capacity during demand surges and releases that capacity when demand subsides.
Identifying automated allocation and release of computing resources pinpoints the cloud feature in use.
2
Map the observed infrastructure behavior to NIST cloud characteristics.
Automated expansion and contraction of compute nodes without manual intervention corresponds directly to rapid elasticity.
Rapid elasticity ensures application performance during workload spikes while preventing resource waste during baseline periods.

Key Concept

Rapid Elasticity
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Topics

Cloud Characteristics and Features (Elasticity, On-Demand, Resource Pooling)

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