AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question

Scheduled actions let you scale proactively at known times. Creating one action that raises the Auto Scaling group's desired (and optionally minimum) capacity a few minutes before the lunchtime spike, and a second action that lowers capacity after the spike, ensures instances are running when demand arrives and are terminated when they are no longer needed. This keeps CPU utilization under the 60 percent target and avoids paying for extra instances the rest of the day.

Predictive scaling uses machine-learning forecasts but needs historical data and may scale earlier or later than desired; it adds complexity without clear benefit when the spike occurs at a fixed time. Lowering the target in the existing policy still reacts after the spike begins, so pages will continue to slow. Buying Reserved Instances and disabling scale-in provides capacity but wastes money outside the two-hour window and does not adjust to future changes in load.