AWS Certified CloudOps Engineer Associate SOA-C03 Practice Question
Your company runs Linux and Windows EC2 instances spread across three AWS accounts. Operations must collect the instances' memory utilization and a set of custom application log files in Amazon CloudWatch without manually copying configuration files to every server. The team also wants to be able to update the agent configuration from a central location. Which approach satisfies these requirements with the least operational overhead?
Manually copy the CloudWatch agent configuration file into /opt/aws/amazon-cloudwatch-agent on each instance during user data, then start the agent with the local file path.
Use Systems Manager Run Command with the AmazonCloudWatch-ManageAgent document to install the unified CloudWatch agent on every instance and have each agent load its JSON configuration from an SSM Parameter Store key that the operations team manages.
Enable AWS Config across all accounts to stream operating-system metrics, including memory, into CloudWatch and configure delivery of log files through the same service.
Install the CloudWatch Logs agent on Linux servers and the unified CloudWatch agent on Windows servers; configure memory metrics later with CloudWatch Metrics Insights queries.
The CloudWatch agent must be used because the standard CloudWatch metrics do not include memory utilization. The AmazonCloudWatch-ManageAgent SSM document can remotely install or update the unified CloudWatch agent on both Linux and Windows instances. When the agent starts, it can pull its JSON configuration from an SSM parameter, allowing administrators to store and edit a single configuration in Systems Manager Parameter Store and apply it across multiple accounts by using Run Command or State Manager. This removes the need to manually place files on every instance.
Using the legacy CloudWatch Logs agent cannot emit memory metrics, and mixing two different agents increases management effort. Storing the configuration locally on each instance still requires manual distribution whenever changes are needed. AWS Config does not collect operating-system metrics, so enabling it would not meet the monitoring requirement.
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AWS Certified CloudOps Engineer Associate SOA-C03
Monitoring, Logging, Analysis, Remediation, and Performance Optimization
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