AWS Certified Cloud Practitioner (CLF-C02) — Question 11

A company has a compute workload that is steady, predictable, and uninterruptible.
Which Amazon EC2 instance purchasing options meet these requirements MOST cost-effectively? (Choose two.)

Answer options

• A. On-Demand Instances
• B. Reserved Instances
• C. Spot Instances
• D. Saving Plans
• E. Dedicated Hosts

Correct answer: B, D

Explanation

Reserved Instances provide a significant discount for predictable workloads that require a stable environment over a long period, making them cost-effective. Saving Plans also offer flexible pricing for consistent usage, allowing for cost savings compared to On-Demand pricing. On-Demand Instances are more expensive for steady workloads, while Spot Instances are not suitable for uninterruptible tasks due to their variable availability.