Question

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

An automotive assembly plant utilizes a cloud-hosted computer vision platform to perform quality assurance checks on manufactured vehicle frames. Under normal operational shifts, a small cluster of cloud virtual servers handles the incoming image processing tasks. However, during high-volume production testing periods, image data spikes significantly. The cloud platform automatically provisions additional compute nodes to process the workload peak without manual administrator intervention, and then automatically decommission them as processing volume returns to baseline levels. Which essential cloud characteristic is primarily demonstrated in this scenario?

  1. Rapid elasticityAnswer
  2. B
    Resource pooling
  3. C
    Infrastructure as a Service
  4. D
    On-demand self-service

Answer

Rapid elasticity is demonstrated because the cloud system automatically expands compute capacity to handle temporary traffic spikes and contracts capacity when processing volume drops back to normal.
Rapid elasticity allows compute, storage, or network resources to be automatically scaled outward or inward to match workload demands seamlessly, ensuring systems maintain performance during peaks without over-provisioning infrastructure permanently.

Step-by-Step Solution

1
Analyze the operational requirements presented in the scenario.
The platform automatically increases server resources when workload surges and releases them when workload decreases.
Identifying the dynamic expansion and contraction behavior isolates which cloud feature is active.
2
Differentiate between NIST cloud characteristics.
Rapid elasticity explicitly describes resources provisioning dynamically to scale out and in based on real-time demand.
This contrasts with on-demand self-service (manual request of resources) and resource pooling (multi-tenant shared hardware).

Key Concept

Rapid Elasticity
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