AWS Certified SysOps Administrator – Associate (legacy) — Question 470

What is an Auto Scaling group?

Answer options

• A. It is a group of ELBs that are used to add instances from various regions.
• B. It is a logical grouping of EC2 instances that share similar characteristics for scaling and man-agement.
• C. It is a collection of EC2 instance launch parameters with different characteristics for scaling and management.
• D. It is a group of launch configurations for Elastic load balancers in the same region.

Correct answer: B

Explanation

An Auto Scaling group is a logical collection of EC2 instances that share similar characteristics and are managed as a single unit for scaling purposes. While launch configurations define the templates for creating these instances, they do not represent the group of running instances itself. Elastic Load Balancers (ELBs) are used to distribute traffic to these instances but are not the definition of the Auto Scaling group.