Which of the following is a way to use Amazon EC2 Auto Scaling groups to scale capacity in the AWS Cloud?
Scale the number of EC2 instances in or out automatically, based on demand.
Use serverless EC2 instances.
Scale the size of EC2 instances up or down automatically, based on demand.
Transfer unused CPU resources between EC2 instances.
Explanations:
Auto Scaling groups allow you to automatically increase or decrease the number of EC2 instances based on predefined metrics, such as CPU utilization or request count, to match demand.
There is no concept of “serverless EC2 instances.” Serverless architectures typically refer to services like AWS Lambda, which are different from EC2 instances.
Scaling the size of EC2 instances (changing instance types) is not handled by Auto Scaling groups. Auto Scaling primarily deals with the number of instances, not their size.
Transferring unused CPU resources between EC2 instances is not a feature of Auto Scaling. Each EC2 instance operates independently, and resource allocation cannot be transferred in this manner.
If I had to guess, I’d say the answer is:
Scale the number of EC2 instances in or out automatically, based on demand.
I organize that the answer is:
Scale the number of EC2 instances in or out automatically, based on demand.