Free AWS Certified Solutions Architect Associate SAA-C03 Practice Question
A single Average CPU Utilization metric is sufficient for an auto-scaling group managing a fleet of EC2 instances in an e-commerce application to guarantee its high availability during peak times.
Relying solely on Average CPU Utilization might not be sufficient to guarantee the high availability of an application during peak times. Auto-scaling decisions should be based on a broader set of metrics that reflect different aspects of system performance and user experience to avoid potential bottlenecks or resource constraints. These can include metrics like network I/O, disk I/O, memory usage, request latency, error rates, and throughput. A combination of these metrics can more accurately trigger scaling actions that maintain the application's high availability during demand surges.
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What are some other metrics that can be used for auto-scaling besides CPU utilization?
What is an auto-scaling group and how does it work in AWS?
Why is high availability important in an e-commerce application?