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Difficulty: MediumUnderstand concepts of cloud economics

A financial technology firm, PayVanguard, is migrating its transaction reconciliation platform from an on-premises colocation facility to AWS. Currently, the firm must purchase and maintain high-performance physical servers to handle short-lived processing peaks at the end of each month. In the cloud, they plan to use Amazon EC2 Auto Scaling to dynamically adjust capacity based on actual transaction volume.

Which of the following are direct cloud economics benefits of this migration? (Select TWO.)

  1. Shifting from upfront capital expenses (CapEx) to variable operating expenses (OpEx) that align with real-time demandAnswer
  2. Eliminating costs associated with idle capacity by using elasticity to scale down compute resources when transaction volumes are lowAnswer
  3. C
    Increasing capital expenses (CapEx) to claim tax depreciation on the physical servers and data centers owned by AWS
  4. D
    Ensuring application scalability by permanently running all EC2 instances at maximum capacity regardless of actual transaction volume
  5. E
    Running the primary transaction database on Spot Instances to guarantee constant availability at the lowest possible cost

Answer

Shifting from upfront capital expenses (CapEx) to variable operating expenses (OpEx) that align with real-time demand, and eliminating costs associated with idle capacity by using elasticity to scale down compute resources when transaction volumes are low.
The correct choices are shifting from upfront capital expenses to variable operating expenses, and eliminating costs associated with idle capacity using elasticity. Migrating to AWS allows organizations to trade capital expense (investing in physical servers and data centers upfront) for variable operating expense (paying for resources as they are used). Additionally, by utilizing elasticity (such as with Amazon EC2 Auto Scaling), the organization can scale down resources when transaction volumes are low, avoiding the cost of overprovisioning and idle capacity.

Step-by-Step Solution

1
Analyze the financial transition in cloud computing.
Identify that shifting from upfront physical hardware investments (CapEx) to a pay-as-you-go model (OpEx) is a core economic shift.
This allows the firm to pay only for the resources they actively use, improving financial flexibility.
2
Evaluate the impact of Auto Scaling on cost efficiency.
Identify that using elasticity to scale resources down during off-peak periods prevents paying for idle compute capacity.
This aligns resource supply directly with demand, avoiding overprovisioning costs typical of on-premises environments.

Key Concept

Cloud Economics: CapEx to OpEx shift and Elasticity
Estimated Time:1m 30s
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Understand concepts of cloud economics

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