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

A university systems administrator is configuring a cloud-hosted student enrollment portal. The system experiences massive, unpredicted spikes in user traffic during the first two hours of course registration each semester, requiring compute capacity to expand immediately without manual admin intervention and shrink back down as traffic normalizes. Additionally, the university requires that physical hardware resources be dynamically assigned and reassigned across multiple department virtual machines based on demand. Which of the following cloud characteristics directly address these operational requirements? (Select TWO.)

  1. Rapid elasticityAnswer
  2. Resource poolingAnswer
  3. C
    Infrastructure as a Service
  4. D
    Type 1 hypervisor execution

Answer

The correct options are Rapid elasticity and Resource pooling.
Rapid elasticity provides automatic provisioning and de-provisioning of compute capacity to accommodate sudden peaks and declines in traffic. Resource pooling allows the provider to aggregate physical computing resources to serve multiple tenants, dynamically allocating physical CPU, memory, and bandwidth based on workload needs.

Step-by-Step Solution

1
Analyze the requirement for automatic resource expansion and contraction based on traffic spikes.
Dynamic automatic scaling up and down in response to demand corresponds to Rapid Elasticity.
Rapid elasticity ensures services scale seamessly without manual service provisioning delays.
2
Analyze the requirement for physical hardware resources to be dynamically allocated and shared among different departmental virtual machines.
Serving multiple consumers using a multi-tenant model with pooled physical resources corresponds to Resource Pooling.
Resource pooling abstracts physical hardware so that CPU, memory, and storage can be dynamically reallocated.
3
Differentiate NIST essential cloud characteristics from service models and hypervisor architectures.
IaaS is a service delivery model and Type 1 hypervisors are low-level host virtualization technologies.
Neither IaaS nor Type 1 hypervisor execution describes the specific operational behaviors required by the scenario.

Key Concept

Essential Cloud Computing Characteristics (Rapid Elasticity and Resource Pooling)
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Topics

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

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