Amazon Web Services DOP-C02 Exam With Confidence Using Practice Dumps

Installing the CloudWatch agent and instrumenting the application to push custom metrics to the agent is the easiest and lowest overhead method.

Prometheus (B) adds operational complexity.

Lambda polling (C) introduces unnecessary complexity and latency.

Using Logs Insights (D) requires extracting metrics from logs, which is less efficient.

Comprehensive & Detailed Explanation (150–250 words):

AWS Control Tower provides Account Factory and Account Factory Customizations (AFC) as the lowest-overhead and most scalable method for creating and configuring new accounts. AFC allows you to define blueprints that include mandatory baseline resources such as IAM roles, logging configurations, guardrails, network settings, and tagging standards. When accounts are created through Account Factory using a customization blueprint, all controls and baseline configurations are applied automatically during provisioning, without any additional automation steps or StackSet deployments.

Option B requires running StackSets after the account is created, which adds manual management overhead and defeats the built-in automation advantages of Control Tower. Options C and D rely on manually provisioning accounts via AWS Organizations, which bypasses Control Tower’s governance and would require custom Lambda or StackSet automation to replicate controls that Control Tower already provides automatically.

Because the question explicitly asks for the least operational overhead, the correct answer is to use the Control Tower AFC blueprint, ensuring every account is born compliant with the required guardrails and baseline configuration.

Use routing configuration on an alias to send a portion of traffic to a second function version. For example, you can reduce the risk of deploying a new version by configuring the alias to send most of the traffic to the existing version, and only a small percentage of traffic to the new version.

The following are the steps involved in the deploy stage configuration that will meet the requirements:

Use AWS CodeBuild to add sample event payloads for testing to the Lambda functions.

Publish a new version of the functions, and include Amazon CloudWatch alarms.

Update the production alias to point to the new version.

Configure rollbacks to occur when an alarm is in the ALARM state.

This configuration will help to reduce the customer impact of an unsuccessful deployment by deploying the new version of the functions to a staging environment first. This will allow the DevOps engineer to test the new version of the functions before deploying it to production.

The configuration will also help to monitor for issues by including Amazon CloudWatch alarms. These alarms will alert the DevOps engineer if there are any problems with the new version of the functions.