AWS Certified Solutions Architect - Associate
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An Amazon EventBridge rule targets a third-party API. The third-party API has not received any incoming traffic. A solutions architect needs to determine whether the rule conditions are being met and if the rule's target is being invoked. Which solution will meet these requirements?
Other
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UAnonymous
A
Check for metrics in Amazon CloudWatch in the namespace for AWS/Events.
B
Review events in the Amazon Simple Queue Service (Amazon SQS) dead-letter queue.
C
Check for the events in Amazon CloudWatch Logs.
D
Check the trails in AWS CloudTrail for the EventBridge events.
Explanation:
Explanation
Correct Answer: A
Amazon EventBridge provides metrics in Amazon CloudWatch under the AWS/Events namespace. These metrics can help determine:
- Invocations - Number of times the rule's target was invoked
- TriggeredRules - Number of times the rule was triggered
- MatchedEvents - Number of events that matched the rule pattern
- FailedInvocations - Number of failed target invocations
By checking these metrics in CloudWatch, the solutions architect can determine:
- Whether rule conditions are being met (via MatchedEvents metric)
- Whether the rule's target is being invoked (via Invocations metric)
Why other options are incorrect:
B. Review events in the Amazon Simple Queue Service (Amazon SQS) dead-letter queue.
- This would only be relevant if the target was an SQS queue with a dead-letter queue configured, not a third-party API.
- Even if there was an SQS target, checking the dead-letter queue only shows failed messages, not successful invocations or rule matches.
C. Check for the events in Amazon CloudWatch Logs.
- EventBridge doesn't automatically send events to CloudWatch Logs unless specifically configured to do so.
- While you can configure EventBridge to send events to CloudWatch Logs, this is not the default or most direct way to monitor rule execution.
D. Check the trails in AWS CloudTrail for the EventBridge events.
- CloudTrail logs API calls for management operations (like creating, updating, or deleting rules) but doesn't log the actual event matching and target invocation data.
- CloudTrail is for auditing API calls, not for monitoring event processing.
Key AWS Services Knowledge:
- Amazon EventBridge: Serverless event bus service that connects applications using events
- Amazon CloudWatch Metrics: Provides operational data and performance metrics for AWS services
- AWS/Events namespace: Contains metrics for Amazon EventBridge and Amazon CloudWatch Events
- Important metrics: Invocations, TriggeredRules, MatchedEvents, FailedInvocations
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