Elasticity in the AWS Cloud refers to which of the following?
(Choose two.)
How quickly an Amazon EC2 instance can be restarted
The ability to rightsize resources as demand shifts
The maximum amount of RAM an Amazon EC2 instance can use
The pay-as-you-go billing model
How easily resources can be procured when they are needed
Explanations:
Elasticity in the AWS Cloud does not refer to the speed of restarting an EC2 instance.
Elasticity involves the ability to adjust resources based on current demand, including rightsizing.
The maximum amount of RAM an EC2 instance can use is related to instance type, not elasticity.
The pay-as-you-go model relates to cost management, not directly to the concept of elasticity.
Elasticity encompasses the ability to provision resources quickly to meet demand when needed.
I conclude that the answer is:
The ability to rightsize resources as demand shifts