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Difficulty: HardUnderstand concepts of cloud economics

A global smart agriculture company collects telemetry data from soil sensors deployed in various fields. The volume of data fluctuates significantly, peaking during harvest seasons and dropping to near zero during winter. The company is migrating its data processing workload from an on-premises data center to the AWS Cloud. Which two of the following describe the primary cloud economic advantages of this migration?

  1. Shifting from a capital expense (CapEx) model of purchasing physical hardware to a variable operating expense (OpEx) model.Answer
  2. B
    Eliminating operational expenses (OpEx) entirely by utilizing AWS managed services to handle physical server maintenance.
  3. Leveraging cloud elasticity to scale resources down during the off-season, preventing costs associated with idle capacity.Answer
  4. D
    Improving scalability by permanently overprovisioning instances to handle peak harvest demands at all times.
  5. E
    Reducing migration costs through rehosting (lift-and-shift), which automatically restructures legacy monolithic databases into decoupled microservices.

Answer

Shifting from a capital expense (CapEx) model of purchasing physical hardware to a variable operating expense (OpEx) model, and leveraging cloud elasticity to scale resources down during the off-season, preventing costs associated with idle capacity.
The correct options represent core cloud economic advantages. The transition from capital expenses to operating expenses allows a business to pay only for the resources consumed rather than investing upfront in depreciating physical hardware. Furthermore, leveraging elasticity allows the system to scale down during low-activity periods (winter), preventing wasted expenditure on idle server capacity.

Step-by-Step Solution

1
Analyze the workload characteristics described in the scenario.
The workload has highly seasonal and fluctuating demand (high peak during harvests, low during winter).
Understanding the usage pattern helps identify the financial benefits of scaling resources dynamically.
2
Evaluate the financial shift in cloud computing.
On-premises requires upfront Capital Expenses (CapEx) for peak capacity, whereas AWS uses variable Operating Expenses (OpEx).
This identifies the economic advantage of trading fixed capital costs for variable operational costs.
3
Apply the concept of elasticity to the fluctuating demand.
AWS resources can scale down when demand is low (winter) and scale up when demand is high (harvest).
This explains how the cost benefit of elasticity prevents paying for idle resources.

Key Concept

Understand concepts of cloud economics including CapEx vs OpEx and the cost benefits of elasticity.
Estimated Time:2m 0s
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Understand concepts of cloud economics

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