Free AWS Certified Solutions Architect Associate SAA-C03 Practice Question

Spot Instances are the most cost-effective choice for workloads that are stateless, can tolerate interruptions, and have flexible timing for their start and end times. Spot Instances allow users to take advantage of unused EC2 capacity at up to a 90% discount compared to On-Demand prices. Although Reserved Instances and Savings Plans offer cost savings, they require a commitment for a certain term (1 or 3 years), which might not be suitable for workloads with flexible timings. On-Demand Instances are charged at the full rate without any upfront commitment, which does not provide the cost savings inherent to Spot Instances for interruptible workloads.