Your company runs a business management applications on the AWS cloud and has hundreds of customers. During the peak load, they receive hundreds of requests per second. The overall application uses many AWS services like API Gateway, Lambda, DynamoDB, Kinesis, RDS, etc. The product allows users to customize their environment based on their requirements.

Answer options:

A.Publish logs using the CloudWatch Logs and redirect the logs to Kinesis to inspect the issues in real-time.
B.Due to the distributed nature of the application and multiple services used, use the 3rd party tool and integrate it with it.
C.Use X-Ray to monitor the performance of your application.
D.Use CloudWatch custom metrics to publish and generate events for the notifications.
E.Use X-Ray segments and annotations for group-level tracing.

Correct Answers: C and E
Option A is INCORRECT because the CloudWatch Logs generated from these individual requests will, by default, not have any correlation identifier, and it will have to be done manually to tie up the original requests with all the logs.
Option B is INCORRECT because while it may be possible to do, it will also require some usage of a correlation identifier to isolate interactions among different services.
Option C is CORRECT because the X-Ray integrates well into the AWS services, and it can manage the request relation concerning other AWS services. AWS X-Ray provides wrappers for other AWS services as well as traces requests with more detailed information.
Option D is INCORRECT because while this is doable, it may require an additional effort to log and generate custom metrics data. CloudWatch custom metrics are generally used where the custom and application-specific monitoring is required, like Disk Space Consumed or Payment Gateway Error, etc.
Option E is CORRECT because, with the use of AWS X-Ray segments, detail tracing can be enabled. Annotations can help pinpoint specific areas of the application in the tracing records to isolate the issues and impact area further.