Exam AWS Certified Solutions Architect - Associate SAA-C03 topic 1 question 595 discussion

Dynamic Scaling – This is yet another type of Auto Scaling in which the number of EC2 instances is changed automatically depending on the signals received. Dynamic Scaling is a good choice when there is a high volume of unpredictable traffic. https://www.developer.com/web-services/aws-auto-scaling-types-best-practices/#:~:text=Dynamic%20Scaling%20%E2%80%93%20This%20is%20yet,high%20volume%20of%20unpredictable%20traffic.

C - " sudden traffic increases on random days of the week" --> dynamic scaling

random = dynamic A: Manual is never a solution B: Predictive is not possible as it's random D: Cannot schedule random

Dynamic scaling

https://aws.amazon.com/ec2/autoscaling/faqs/

C is the best answer here. Dynamic scaling is the most cost-effective way to automatically scale the Auto Scaling group to maintain performance during random traffic spikes.