Exam AWS Certified Solutions Architect - Associate SAA-C02 topic 1 question 558 discussion

B is the answer

Agreed with B

Use predictive scaling with dynamic scaling. Dynamic scaling is used to automatically scale capacity in response to real-time changes in resource utilization. Using it with predictive scaling helps you follow the demand curve for your application closely, scaling in during periods of low traffic and scaling out when traffic is higher than expected. When multiple scaling policies are active, each policy determines the desired capacity independently, and the desired capacity is set to the maximum of those. For example, if 10 instances are required to stay at the target utilization in a target tracking scaling policy, and 8 instances are required to stay at the target utilization in a predictive scaling policy, then the group's desired capacity is set to 10. https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-predictive-scaling.html

Forecast / Analysis / future adaptation = Predictive scaling

Correct Answer: B You "can use predictive scaling, dynamic scaling, or both. Predictive scaling works by forecasting load and scheduling minimum capacity; dynamic scaling uses target tracking to adjust a designated CloudWatch metric to a specific target. The two models work well together because of the scheduled minimum capacity already set by predictive scaling." https://aws.amazon.com/blogs/aws/new-predictive-scaling-for-ec2-powered-by-machine-learning/

yes, B is correct

B is the answer

Ans is B