AWS - Architecture Best Practices
Which of the following is the correct JSON snippet to create a CloudWatch alarm that triggers when CPU utilization exceeds 80%?
Which of the following is the correct JSON snippet to create a CloudWatch alarm that triggers when CPU utilization exceeds 80%?
easy📝 Syntax Q3 of 15
Step-by-Step Solution
Solution:
Step 1: Understand CloudWatch alarm threshold format
The Threshold value must be a number without a percent sign. 80 means 80% CPU utilization.Step 2: Check the comparison operator
To trigger when CPU exceeds 80%, use "GreaterThanThreshold".Final Answer:
Valid JSON with Threshold 80 and GreaterThanThreshold -> Option DQuick Check:
Threshold number and correct operator = {\"AlarmName\": \"HighCPU\", \"MetricName\": \"CPUUtilization\", \"Threshold\": 80, \"ComparisonOperator\": \"GreaterThanThreshold\"} [OK]
Quick Trick: Threshold is a number, no % sign; use GreaterThanThreshold [OK]
Common Mistakes:
- Using string with % sign for Threshold
- Using LessThanThreshold instead of GreaterThanThreshold
- Using decimal 0.8 instead of 80
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