AWS - CloudWatch
Which AWS service is commonly used to automatically add or remove EC2 instances based on CloudWatch alarm actions?
Which AWS service is commonly used to automatically add or remove EC2 instances based on CloudWatch alarm actions?
easy📝 Conceptual Q2 of 15
Step-by-Step Solution
Solution:
Step 1: Identify service for automatic instance scaling
AWS Auto Scaling manages EC2 instance counts automatically based on triggers.Step 2: Role of CloudWatch alarm
CloudWatch alarms trigger Auto Scaling policies to add or remove instances.Final Answer:
AWS Auto Scaling -> Option AQuick Check:
Auto Scaling = automatic instance adjustment [OK]
Quick Trick: Auto Scaling adjusts instances automatically on alarm [OK]
Common Mistakes:
- Confusing SNS as scaling service
- Thinking Lambda directly scales EC2
- Assuming AWS Config manages scaling
Master "CloudWatch" in AWS
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