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DVA-C02 · Question #88

A company runs an application on AWS. The company deployed the application on Amazon EC2 instances. The application stores data on Amazon Aurora. The application recently logged multiple application-s

The correct answer is C. Use Amazon CloudWatch Logs to create a metric filter that has a filter pattern for. CloudWatch Logs can use filter expressions. For example, find a specific IP inside of a log Or count occurrences of "ERROR" in your logs - Metric filters can be used to trigger CloudWatch

Submitted by yuriko_h· Mar 5, 2026Monitoring and Troubleshooting

Question

A company runs an application on AWS. The company deployed the application on Amazon EC2 instances. The application stores data on Amazon Aurora. The application recently logged multiple application-specific custom DECRYP_ERROR errors to Amazon CloudWatch logs. The company did not detect the issue until the automated tests that run every 30 minutes failed. A developer must implement a solution that will monitor for the custom errors and alert a development team in real time when these errors occur in the production environment. Which solution will meet these requirements with the LEAST operational overhead?

Options

  • AConfigure the application to create a custom metric and to push the metric to CloudWatch. Create
  • BCreate an AWS Lambda function to run every 5 minutes to scan the CloudWatch logs for the
  • CUse Amazon CloudWatch Logs to create a metric filter that has a filter pattern for
  • DInstall the CloudWatch unified agent on the EC2 instance. Configure the application to generate a

How the community answered

(38 responses)
  • A
    8% (3)
  • B
    18% (7)
  • C
    71% (27)
  • D
    3% (1)

Explanation

CloudWatch Logs can use filter expressions. For example, find a specific IP inside of a log Or count occurrences of "ERROR" in your logs - Metric filters can be used to trigger CloudWatch

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