Exam AWS Certified Developer - Associate DVA-C02 topic 1 question 79 discussion

Exam question from Amazon's AWS Certified Developer - Associate DVA-C02

Question #: 79
Topic #: 1

[All AWS Certified Developer - Associate DVA-C02 Questions]

A developer wants to debug an application by searching and filtering log data. The application logs are stored in Amazon CloudWatch Logs. The developer creates a new metric filter to count exceptions in the application logs. However, no results are returned from the logs.

What is the reason that no filtered results are being returned?

A. A setup of the Amazon CloudWatch interface VPC endpoint is required for filtering the CloudWatch Logs in the VPC.
B. CloudWatch Logs only publishes metric data for events that happen after the filter is created.
C. The log group for CloudWatch Logs should be first streamed to Amazon OpenSearch Service before metric filtering returns the results.
D. Metric data points for logs groups can be filtered only after they are exported to an Amazon S3 bucket.

Show Suggested Answer

Suggested Answer: B 🗳️

by zodraz at May 8, 2023, 12:03 p.m.

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Comments

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zodraz

Highly Voted 1 year, 7 months ago

Selected Answer: B

Filters do not retroactively filter data. Filters only publish the metric data points for events that happen after the filter was created. https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/MonitoringLogData.html

upvoted 14 times

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anandkg

Most Recent 2 months, 3 weeks ago

Selected Answer: B

The other option are not that related

upvoted 1 times

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sumanshu

6 months ago

Selected Answer: B

Metric filters in Amazon CloudWatch Logs only work on new logs generated after the filter is created. If the filter was created, but no logs were generated afterward (or if you're trying to filter older log entries), no metric data points would be produced.

upvoted 1 times

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65703c1

7 months, 1 week ago

Selected Answer: B

B is the correct answer.

upvoted 1 times

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SerialiDr

11 months, 3 weeks ago

Selected Answer: B

CloudWatch Logs metric filters apply to new log events only after the filter is created. They do not retroactively analyze or filter log events that were ingested before the creation of the metric filter. Therefore, if the log events in question were ingested before the metric filter was created, they would not trigger the filter or generate metric data.

upvoted 2 times

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Dushank

1 year, 3 months ago

Selected Answer: B

Metric filters in Amazon CloudWatch Logs are applied only to new log events. If you create a metric filter and are looking to count exceptions, the filter will only apply to log events generated after the metric filter was created. Existing logs are not scanned.

upvoted 4 times

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