AWS Interview DropIntermediate TierScenario+25 XP on read
Your traffic is spiky and unpredictable during business hours. Design an EC2 Auto Scaling policy that reacts fast without overspending overnight.
Core Summary
Target tracking should be the default scaling policy, since it only needs one metric and handles the math itself. Layer scheduled actions on top for the predictable part of the day, and treat step scaling as the exception for spikes that need a bigger, immediate jump than target tracking gives you.
Hints
Hint 1: Target tracking is a PID loop, not a set of thresholds you tune by hand
Hint 2: Scheduled actions handle the predictable half of the problem
Hint 3: Cooldown and warm-up windows are why scaling feels slow to fire