Which solution will meet these requirements?
Use the Amazon CloudWatch agent to send logs from the EC2 instances to Amazon CloudWatch Logs. Configure AWS CloudTrail to deliver the API logs to Amazon S3. Use CloudWatch to query both sets of logs.
Use the Amazon CloudWatch agent to send logs from the EC2 instances to Amazon CloudWatch Logs. Configure AWS CloudTrail to deliver the API logs to CloudWatch Logs. Use CloudWatch Logs Insights to query both sets of logs.
Use the Amazon CloudWatch agent to send logs from the EC2 instances to Amazon Kinesis. Configure AWS CloudTrail to deliver the API logs to Kinesis. Use Kinesis to load the data into Amazon Redshift. Use Amazon Redshift to query both sets of logs.
Use the Amazon CloudWatch agent to send logs from the EC2 instances to Amazon S3. Use AWS CloudTrail to deliver the API logs to Amazon S3. Use Amazon Athena to query both sets of logs in Amazon S3.
Explanations:
Amazon CloudWatch cannot directly query logs from S3. It requires logs to be in CloudWatch Logs for querying. CloudTrail logs should be sent to CloudWatch Logs, not S3.
CloudWatch Logs Insights can query both EC2 instance logs (via CloudWatch Logs) and AWS API activity logs (via CloudTrail in CloudWatch Logs). This is a fully integrated solution.
Kinesis and Redshift are unnecessary for querying application logs and CloudTrail data. CloudWatch Logs Insights provides a more straightforward way to query both types of logs.
While S3 and Athena can query logs, this setup is more complex than necessary. CloudWatch Logs Insights is a more direct solution for querying logs from both EC2 and CloudTrail.