AWS - Auto Scaling
Given this auto scaling policy: scale out when CPU > 70%, scale in when CPU < 30%. If CPU usage is 75%, what happens?
Given this auto scaling policy: scale out when CPU > 70%, scale in when CPU < 30%. If CPU usage is 75%, what happens?
medium📝 service behavior Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Analyze the scale out condition
The policy says to add servers when CPU usage is above 70%. CPU is 75%, so condition is met.Step 2: Determine action
Since CPU is high, auto scaling will increase server count to handle load.Final Answer:
The number of servers increases. -> Option AQuick Check:
CPU > 70% triggers scale out = increase servers [OK]
Quick Trick: High CPU triggers scale out (add servers) [OK]
Common Mistakes:
- Confusing scale out with scale in
- Thinking servers are replaced automatically
- Assuming no change on high CPU
Master "Auto Scaling" in AWS
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