Which solution will meet these requirements?
Purchase EC2 Standard Reserved Instances.
Purchase an EC2 Instance Savings Plan.
Purchase EC2 Convertible Reserved Instances.
Purchase a Compute Savings Plan.
Explanations:
EC2 Standard Reserved Instances are specific to a Region, so they cannot provide discounts across multiple Regions. Since the company plans to migrate from eu-west-1 to eu-west-3, this option is not suitable.
EC2 Instance Savings Plans are tied to specific instance families and sizes, and are also region-specific, which would not allow for flexibility when migrating between regions.
EC2 Convertible Reserved Instances allow changes to instance families, sizes, or Regions, but they are still region-specific when it comes to providing discounts, making it less suitable for cross-region use.
A Compute Savings Plan provides flexibility to apply discounts to any EC2 instance regardless of region, instance family, or size. This option is ideal for the company’s needs, as it will cover the migration between regions.