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Difficulty: MediumConsumption-Based Model (CapEx vs OpEx)

A research laboratory runs data-intensive simulation models that require high-performance compute resources for only five days each month. During the remaining days of the month, the laboratory's compute needs are minimal. The laboratory wants to optimize its budget by adopting a consumption-based cloud model on Azure. Which of the following describes the financial outcome of this decision?

  1. A
    The compute costs are treated as a capital expenditure (CapEx), allowing the laboratory to write off the cost of the virtual machine allocations over a multi-year depreciation schedule.
  2. The compute costs are treated as an operational expenditure (OpEx), allowing the laboratory to pay only for the five days of simulation usage without incurring costs during idle periods.Answer
  3. C
    The compute costs are treated as an operational expenditure (OpEx), but the laboratory must pay a fixed, upfront monthly fee regardless of whether simulations are run.
  4. D
    The compute costs are treated as a capital expenditure (CapEx), which eliminates the need to manage monthly operational budget variances.

Answer

The compute costs are treated as an operational expenditure (OpEx), allowing the laboratory to pay only for the five days of simulation usage without incurring costs during idle periods.
The correct answer is correct because a consumption-based model treats costs as operational expenditures (OpEx). Under this model, there are no upfront infrastructure costs, and organizations pay only for the resources they actually use. For a workload that runs for only five days a month, this eliminates the expense of keeping resources active or paying for idle hardware during the rest of the month.

Step-by-Step Solution

1
Analyze the workload characteristics and budget requirements described in the scenario.
The laboratory has a highly variable workload (5 days of peak usage, 25 days of minimal usage) and wants to align expenses directly with this usage.
This identifies the pattern as a classic candidate for a consumption-based billing model rather than a fixed provisioning model.
2
Determine how consumption-based billing maps to the CapEx vs OpEx financial classifications.
Cloud consumption models require no upfront capital (CapEx) and are classified as operational expenditures (OpEx) because you pay only for the resources as they are used.
This allows the laboratory to eliminate idle compute costs and map their expenses directly to the 5 days of simulations.

Key Concept

Consumption-Based Model (CapEx vs OpEx)
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Consumption-Based Model (CapEx vs OpEx)

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