SAA-C03 Question 449
Single answerA financial services company is running a batch processing workload that is extremely cost-sensitive and can tolerate interruptions. The workload is currently running on On-Demand Instances, but the company wants to reduce costs further. Which AWS purchasing option would be the most cost-effective for this workload?
- A
Spot Instances
- B
Reserved Instances
- C
Savings Plans
- D
Dedicated Hosts
Show answer and explanation
Correct answer: A
Explanation
Spot Instances are ideal for workloads that are flexible with interruptions, like batch processing, and they offer the highest cost savings compared to other purchasing options. Reserved Instances and Savings Plans are more suited for predictable, long-term workloads, and Dedicated Hosts are used for compliance requirements rather than cost optimization.
- A. Correct.
Spot Instances are the most cost-effective option for workloads that can tolerate interruptions because they allow you to use unused EC2 capacity at a significantly lower cost compared to On-Demand Instances.
- B. Incorrect.
Reserved Instances are cost-effective for predictable, steady-state workloads, but they require a commitment of 1 or 3 years, which may not be suitable for batch processing workloads that can be interrupted.
- C. Incorrect.
Savings Plans offer flexibility in cost savings across EC2 and other AWS services but are better suited for predictable workloads rather than interruption-tolerant batch processing.
- D. Incorrect.
Dedicated Hosts are designed for compliance and licensing requirements, not for cost optimization of batch processing workloads. They are typically more expensive and not the right fit for this use case.