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Zorluk: OrtaAWS Pricing Models

A healthcare provider is deploying a new electronic health record (EHR) database on Amazon EC2. The database must run continuously with consistent performance 24 hours a day, 7 days a week. The provider is committed to running this workload for the next three years and knows the specific instance type and AWS Region they will use. Which Amazon EC2 pricing model should the provider select to minimize costs for this database workload?

  1. A
    Spot Instances
  2. Reserved InstancesCevap
  3. C
    On-Demand Instances
  4. D
    Upfront Capital Expenditure (CapEx) hardware acquisition

Cevap

The correct answer is Reserved Instances because it provides a significant discount for steady-state, predictable workloads with a long-term commitment.
Reserved Instances are the most cost-effective option for steady-state, predictable workloads that must run continuously. By committing to a 3-year term for a specific instance configuration, the healthcare provider receives a significant discount compared to standard hourly pricing.

Adım Adım Çözüm

1
Analyze the workload characteristics from the scenario.
The EHR database is a critical workload that requires uninterrupted, steady-state execution 24/7 for a predictable 3-year period using a specific instance type.
Understanding workload predictability and tolerance for interruption is the first step in selecting the correct EC2 pricing model.
2
Evaluate the suitability of the available pricing models.
Spot Instances are ruled out due to interruption risk. On-Demand is ruled out because it is too expensive for long-term predictable needs. Upfront hardware purchase is not supported by AWS. Reserved Instances fit a 3-year commitment for a specific instance configuration.
Comparing the technical constraints and cost-efficiency of each option identifies the optimal choice.

Anahtar Kavram

AWS EC2 pricing models and commitment-based discounts
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Konular

AWS Pricing Models

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