AWS Certified Cloud Practitioner (CLF-C02) — Question 558

A company is running big data analytics and massive parallel computations on its AWS test and development servers. The company can tolerate occasional downtime.

What is the MOST cost-effective Amazon EC2 purchasing option for the company to use?

Answer options

Correct answer: B

Explanation

Spot Instances are the most cost-effective option for workloads that can tolerate interruptions, such as big data analytics and test/dev environments, offering discounts of up to 90% off On-Demand prices. On-Demand Instances are much more expensive and do not offer discounts, while Reserved Instances and Savings Plans require long-term commitments that are unnecessary for flexible, non-continuous workloads.