SAP-C02 Continuous Improvement for Existing Solutions Practice Question

Correct answer & explanation

A target tracking scaling policy automatically adjusts capacity based on a specific metric, and using the ALB RequestCountPerTarget metric is appropriate for handling traffic spikes in a cost-effective manner. This policy maintains the desired metric value by adding or removing instances as needed, without manual intervention. Option A is incorrect because a scheduled scaling policy assumes predictable peaks, but the traffic spikes are periodic and may not follow a fixed schedule. Option C is incorrect because manual intervention is not cost-effective and defeats the purpose of automation. Option D is incorrect because a simple scaling policy based on CPU utilization may not react quickly enough to sudden traffic spikes and could be less cost-effective than target tracking.