AWS - Auto Scaling
Given an Auto Scaling group with MinSize=2, MaxSize=4, DesiredCapacity=3, and a scaling policy that adds 1 instance when CPU > 70%, what will be the number of instances if CPU stays at 75% for a while?
Given an Auto Scaling group with MinSize=2, MaxSize=4, DesiredCapacity=3, and a scaling policy that adds 1 instance when CPU > 70%, what will be the number of instances if CPU stays at 75% for a while?
medium📝 Predict Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Understand scaling policy and limits
The policy adds 1 instance when CPU > 70%, but MaxSize is 4, so it cannot exceed 4 instances.Step 2: Calculate new instance count
Starting at DesiredCapacity 3, adding 1 instance results in 4, which is within MaxSize.Final Answer:
The group scales up to 4 instances, respecting MaxSize limit -> Option CQuick Check:
Scaling respects MaxSize = 4 [OK]
Quick Trick: Scaling never exceeds MaxSize [OK]
Common Mistakes:
MISTAKES- Ignoring MaxSize limit and choosing 5
- Assuming no scaling happens at high CPU
- Confusing DesiredCapacity with current instance count
Master "Auto Scaling" in AWS
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore AWS Quizzes