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Which CloudWatch object fires an action (SNS, EC2, Auto Scaling) when a metric crosses a threshold for N consecutive periods?
AA CloudWatch alarm
BAn S3 bucket policy
CA CloudFront edge cache
DA Route 53 record set
Answer & Solution
Correct answer: A. A CloudWatch alarm
Alarms watch a metric over a period and trigger actions when breached. The other options are unrelated.
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