An IT firm is using the Amazon CloudWatch agent to collect system-level metrics from on-premises Linux Servers. A new application is deployed on these servers. The operations team is looking for specific metrics for this application in addition to system metrics.
What configuration in the Amazon CloudWatch agent can be done to fetch application specific metrics?

Answer options:

A.Create a configuration file with a different file name & append it to the existing configuration file using aggregate-config.
B.Create a configuration file with a different file name & append it to the existing configuration file using append-config.
C.Create a configuration file with the same file name & append it to the existing configuration file using append-config.
D.Create a configuration file with the same file name & append it to the existing configuration file using aggregate-config.

Correct Answer: B
Amazon CloudWatch Agent can be set up to use multiple configuration files. These files can fetch different metrics like system level or application specific metrics using multiple configuration files. Multiple Configuration files can be created with different names & added to configuration files using the append-config command.
Options A & D are incorrect as to append additional config files, it needs to use append-config & not aggregate-config.
Option C is incorrect as if append-config is used with two Configuration files with the same file name, it will overwrite the first file. In the above case, the client is looking for both metrics system level & application level.
For more information on using Multiple CloudWatch agent configuration files, refer to the following URL,
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/CloudWatch-Agent-common-scenarios.html#CloudWatch-Agent-multiple-config-files