Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 824 discussion

Target groups are just a group of Ec2 instances. Target groups are closely associated with ELB and not ASG. We can just use ELB and Target groups to route requests to EC2 instances. With this setup, there is no autoscaling which means instances cannot be added or removed when your load increases/decreases.

scalable solution= Amazon Aurora Serverless

I don't see how Redshift or ElastiCache relates to the question.

Option B: Target Group: it doesn't inherently imply automatic scaling. You would need to manage scaling separately, either manually or through other mechanisms like scheduled actions. Option C: Auto Scaling Group: This ensures that the EC2 instances can automatically scale in or out based on traffic and demand. "The company needs a highly available and automatically scalable solution" => C

AnswerC highly available and automatically scalable solution = Auto Scale for EC2 in front which we will have ALB and Aurora Server less will give us perfect decoupled solution in which we can increase amount of servers per need and in case of server failure AutoScale will run new EC2 instance

It's C!

Option C - keywords HA, automatically scalable

C Is what I will go for