A. Improved health and availability of applications: Amazon EC2 Auto Scaling helps ensure the health and availability of applications by automatically adjusting the number of EC2 instances based on demand. It scales the instances up or down based on predefined scaling policies, helping to maintain optimal performance and availability.
C. Optimized performance and costs: With Amazon EC2 Auto Scaling, you can set scaling policies to dynamically adjust the number of EC2 instances based on metrics such as CPU utilization, network traffic, or other custom metrics. This allows you to optimize your application's performance by scaling resources up during high-demand periods and scaling down during low-demand periods, helping to minimize costs.
Option B, reduced network latency, is not a direct benefit of Amazon EC2 Auto Scaling. While Auto Scaling can help ensure the availability and performance of applications, it does not directly address network latency.
The answer is improved health and availability of applications - Amazon EC2 Auto Scaling can detect when an instance is unhealthy, terminate it, and launch an instance to replace it. You can also configure Amazon EC2 Auto Scaling to use multiple Availability Zones. If one Availability Zone becomes unavailable, Amazon EC2 Auto Scaling can launch instances in another one to compensate.
Optimized cost and performance - Amazon EC2 Auto Scaling can dynamically increase and decrease capacity as needed. Because you pay for the EC2 instances you use, you save money by launching instances when they are needed and terminating them when they aren't.
https://docs.aws.amazon.com/autoscaling/ec2/userguide/auto-scaling-benefits.html
For the C, when you see the cost you feel that is only adding more instance which is not cost effective, otherwise it could be the oposite where it scals down which is cost effective
The benefits of Amazon EC2 Auto Scaling are:
A. Improved health and availability of applications
C. Optimized performance and costs
So options A and C are correct.
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