Which two items describe elasticity in the AWS Cloud? (Choose two.)

Elasticity in the AWS Cloud refers to the ability to scale resources up or down quickly and easily to meet changing demand. This includes provisioning new resources when needed, and de-provisioning them when they are no longer required, ensuring optimal resource utilization. Therefore, "The ability to rightsize resources as demand shifts" and "How easily resources can be provisioned when they are needed" both accurately describe elasticity. The speed of restarting an EC2 instance is related to performance, not elasticity. The maximum RAM is a specification of a resource, not a characteristic of elasticity. The pay-as-you-go billing model is a financial aspect, not a technical description of elasticity itself, though elasticity enables cost optimization under this model.