You are a developer for a company. You have to develop an application that would analyze all of the system level and guest level metrics from Amazon EC2 Instances and On-premise servers. Which of the following pre-requisite would you need to carry out?

Answer options:

A.Ensure the Cloudwatch agent is present on the servers.
B.Ensure that a trail is created in Cloudtrail.
C.Ensure that AWS Config is enabled.
D.Ensure the on-premise servers are moved to AWS.

Answer – A
This is mentioned in the AWS Documentation.
The unified CloudWatch agent enables you to do the following.
Collect more system-level metrics from Amazon EC2 instances, including in-guest metrics, in addition to the metrics listed in Amazon EC2 Metrics and Dimensions. The additional metrics are listed in Metrics Collected by the CloudWatch Agent.
Collect system-level metrics from on-premises servers. These can include servers in a hybrid environment as well as servers not managed by AWS.
Collect logs from Amazon EC2 instances and on-premises servers, running either Linux or Windows Server.
Option B is incorrect since this is used for API monitoring.
Option C is incorrect since this is used for monitoring configuration changes.
Option D is incorrect since monitoring can also be configured for on-premise servers.
For more information on the Cloudwatch agent, please visit the following URL-
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/Install-CloudWatch-Agent.html