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Difficulty: Very hardDefine the benefits of the AWS Cloud

A healthcare enterprise is migrating its medical image processing pipeline to AWS. The pipeline experiences highly variable demand: it lies idle for hours, then must suddenly process thousands of high-resolution scans within minutes when clinical trials submit data. On-premises, the enterprise had to purchase and maintain a massive high-performance computing cluster sized for peak load, resulting in high idle costs. On AWS, they deploy a serverless architecture that dynamically scales to zero during idle periods and scales out instantly during peak submissions.

To resolve their capacity utilization challenge, which specific AWS Cloud benefit is the enterprise primarily leveraging?

  1. Stop guessing capacityAnswer
  2. B
    Trade fixed expense for variable expense
  3. C
    Benefit from massive economies of scale
  4. D
    Increase speed and agility

Answer

Stop guessing capacity
The correct answer is 'Stop guessing capacity' because this benefit specifically addresses capacity management. By leveraging elasticity to scale resources up and down in response to demand, organizations no longer need to pre-provision and pay for idle resources to support peak loads, nor do they risk performance issues from under-provisioning.

Step-by-Step Solution

1
Analyze the core problem described in the scenario.
The enterprise is dealing with highly variable demand (idle periods vs. sudden bursts) and wants to avoid paying for idle capacity while ensuring performance under peak loads.
This establishes that the primary issue is capacity management and utilization rather than initial resource provisioning speed or bulk unit pricing.
2
Evaluate the technical solution implemented on AWS.
They deploy a serverless architecture that dynamically scales down to zero and scales out instantly based on real-time demand.
This is a direct application of elasticity, which maps to the AWS Cloud benefit of not having to guess capacity needs.
3
Map the technical solution to the official six AWS Cloud benefits.
'Stop guessing capacity' is the benefit that specifically eliminates the need to pre-provision infrastructure for peak loads, preventing either expensive idle resources or capacity constraints.
While 'Trade fixed expense for variable expense' describes the payment model, the direct resolution of the capacity mismatch is described by 'Stop guessing capacity'.

Key Concept

The six benefits of the AWS Cloud, specifically the distinction between financial benefits (CapEx vs OpEx) and operational/technical capacity management (Elasticity / Stop guessing capacity).
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Define the benefits of the AWS Cloud

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