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

Match each enterprise cloud computing scenario to the essential cloud characteristic it demonstrates.

  • A web application server infrastructure automatically provisions additional instances during traffic spikes and releases them when traffic subsides.Rapid Elasticity
  • Multiple organization workloads dynamically draw compute power, memory, and storage from a centralized multi-tenant physical hardware infrastructure.Resource Pooling
  • A systems administrator instantly provisions and configures additional virtual machines via a web console without interacting with service provider staff.On-Demand Self-Service

Answer

The automatic workload scaling scenario matches Rapid Elasticity; the shared multi-tenant hardware scenario matches Resource Pooling; and the instant self-provisioning portal scenario matches On-Demand Self-Service.
Each scenario illustrates a core NIST cloud characteristic: automated scaling matching system traffic exemplifies Rapid Elasticity; multi-tenant sharing of physical infrastructure exemplifies Resource Pooling; and administrator self-provisioning via management portals exemplifies On-Demand Self-Service.

Step-by-Step Solution

1
Analyze the automatic scaling scenario.
Automatic expansion and contraction of compute resources based on system load maps directly to Rapid Elasticity.
Rapid elasticity allows cloud services to seamlessly scale capacity up or down automatically in real-time.
2
Analyze the multi-tenant shared hardware scenario.
Dynamic allocation of shared physical hardware across multiple workloads maps directly to Resource Pooling.
Resource pooling aggregates physical and virtual resources to serve multiple tenants flexibly.
3
Analyze the portal self-provisioning scenario.
User-controlled provisioning without vendor intervention maps directly to On-Demand Self-Service.
On-demand self-service gives administrators immediate access to cloud resources on an as-needed basis through automated interfaces.

Key Concept

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

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

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