What should the solutions architect recommend?

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In: SAA-C03
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A company has a highly dynamic batch processing job that uses many Amazon EC2 instances to complete it.The job is stateless in nature, can be started and stopped at any given time with no negative impact, and typically takes upwards of 60 minutes total to complete.The company has asked a solutions architect to design a scalable and cost-effective solution that meets the requirements of the job.

What should the solutions architect recommend?

Implement EC2 Spot Instances.

Purchase EC2 Reserved Instances.

Implement EC2 On-Demand Instances.

Implement the processing on AWS Lambda.

Explanations:

EC2 Spot Instances are cost-effective and can be used for stateless batch jobs that can be interrupted. They allow the company to save costs while still being able to process the job dynamically.

EC2 Reserved Instances are not suitable for dynamic and stateless jobs since they involve long-term commitments and do not offer the flexibility needed for jobs that can start and stop frequently.

EC2 On-Demand Instances provide flexibility, but they are more expensive than Spot Instances, making them less cost-effective for a highly dynamic workload.

AWS Lambda is not appropriate for jobs that take upwards of 60 minutes to complete, as it has a maximum execution time limit of 15 minutes. This makes it unsuitable for this use case.

2025-10-23

1 Comment

  1. Nancy
    Author

    As I recall, the answer is:
    Implement EC2 Spot Instances.

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