[Solved] Which of these is the correct way to define a simple auto scaling policy in AWS? — Ans: Scale out when CPU > 70%, scale in when CPU < 30% | AWS

AWS - Auto Scaling

Which of these is the correct way to define a simple auto scaling policy in AWS?

AScale out when memory < 30%, scale in when memory > 70%

BScale out when CPU > 70%, scale in when CPU < 30%

CScale out when disk space > 90%, scale in when disk space < 10%

DScale out when network traffic < 20%, scale in when network traffic > 80%

Step-by-Step Solution

Solution:

Step 1: Understand typical auto scaling triggers
CPU usage thresholds are common triggers for scaling decisions.
Step 2: Evaluate each option's logic
Scale out when CPU > 70%, scale in when CPU < 30% correctly scales out on high CPU and scales in on low CPU. Others have reversed or illogical triggers.
Final Answer:
Scale out when CPU > 70%, scale in when CPU < 30% -> Option B
Quick Check:
Correct scaling triggers = Scale out when CPU > 70%, scale in when CPU < 30% [OK]

Quick Trick: Scale out on high CPU, scale in on low CPU usage [OK]

Common Mistakes:

MISTAKES

Master "Auto Scaling" in AWS

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Which of these is the correct way to define a simple auto scaling policy in AWS?