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

An IT manager is evaluating cloud capabilities for a retail logistics application. Match each operational requirement on the left with the essential cloud characteristic on the right that satisfies it. Which pairs represent the correct matches?

  • Automatically adding server resources during high-volume sales events and scaling down when demand drops.Rapid Elasticity
  • Provisioning storage and computing instances immediately via a cloud portal without waiting for IT staff approval.On-Demand Self-Service
  • Combining multi-tenant storage hardware into a unified infrastructure pool.Resource Pooling
  • Tracking bandwidth and CPU usage so clients only pay for the exact resources consumed.Measured Service

Answer

Rapid Elasticity matches automatic scaling based on demand. On-Demand Self-Service matches provisioning resources directly via a portal. Resource Pooling matches combining hardware across multi-tenant workloads. Measured Service matches tracking usage for consumption-based billing.
The correct matches align each operational requirement with its official NIST/CompTIA cloud characteristic definition: automatic scaling to demand is rapid elasticity; provisioning without staff interaction is on-demand self-service; multi-tenant hardware aggregation is resource pooling; and meter-based usage tracking is measured service.

Step-by-Step Solution

1
Identify the characteristic associated with dynamic automatic resource scaling.
Automatically expanding and contracting resources to meet traffic demands aligns with Rapid Elasticity.
Rapid elasticity allows cloud resources to adjust dynamically as workload demands fluctuate.
2
Identify the characteristic allowing self-provisioning of cloud services.
Configuring instances directly via an automated portal without human interaction aligns with On-Demand Self-Service.
On-demand self-service enables users to access computing capabilities automatically when needed.
3
Identify the characteristic associated with shared physical hardware resources.
Aggregating physical computing and storage assets across multiple tenants aligns with Resource Pooling.
Resource pooling uses multi-tenant models to assign physical and virtual resources dynamically.
4
Identify the characteristic related to metric monitoring and resource billing.
Tracking resource usage parameters like storage, CPU, and bandwidth aligns with Measured Service.
Measured service provides transparent monitoring and meter-based billing for cloud usage.

Key Concept

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

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

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