Câu 51: AWS Certified Solutions Architect - Associate SAA-C02(Old)

A company's application is running on Amazon EC2 instances within an Auto Scaling group behind an Elastic Load Balancer. Based on the application's history, the company anticipates a spike in traffic during a holiday each year. A solutions architect must design a strategy to ensure that the Auto Scaling group proactively increases capacity to minimize any performance impact on application users. Which solution will meet these requirements?

1. A. Create an Amazon CloudWatch alarm to scale up the EC2 instances when CPU utilization exceeds 90%.
2. B. Create a recurring scheduled action to scale up the Auto Scaling group before the expected period of peak demand. — đáp án hiện tại
3. C. Increase the minimum and maximum number of EC2 instances in the Auto Scaling group during the peak demand period.
4. D. Configure an Amazon Simple Notification Service (Amazon SNS) notification to send alerts when there are autoscaling:EC2_INSTANCE_LAUNCH events.