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You want to prevent your Auto Scaling group from scaling in too quickly after a scale-out event. How can you configure cooldown periods to achieve this?

hard📝 Best Practice Q8 of 15
AWS - Auto Scaling
You want to prevent your Auto Scaling group from scaling in too quickly after a scale-out event. How can you configure cooldown periods to achieve this?
ASet a cooldown period on the scale-out policy only
BSet cooldown periods on both scale-in and scale-out policies
CDisable cooldown periods to allow immediate scaling
DSet a cooldown period on the scale-in policy only
Step-by-Step Solution
Solution:
  1. Step 1: Understand cooldown effect on scaling directions

    Cooldown periods control how soon next scaling action can happen after previous one.
  2. Step 2: Apply cooldown to both policies

    To prevent quick scale-in after scale-out, set cooldown on both scale-in and scale-out policies.
  3. Final Answer:

    Set cooldown periods on both scale-in and scale-out policies -> Option B
  4. Quick Check:

    Cooldown on both policies = Prevent quick scaling [OK]
Quick Trick: Apply cooldown on both scale-in and scale-out policies [OK]
Common Mistakes:
MISTAKES
  • Setting cooldown on only one policy
  • Disabling cooldown periods
  • Assuming cooldown affects only scale-in

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