This course can cover several purposes around monitoring resources using Cloudwatch and also using other resources.
The course also covers in detail Domain 3.0 of AWS System Operations Exam.
So if your thinking of taking the hardest Associate exam this will certainly help in Domain 3.0.
3 Domain 3.0: Analysis
3.1 Optimize the environment to ensure maximum performance
3.2 Identify performance bottlenecks and implement remedies
3.3 Identify potential issues on a given application deployment
Amazon CloudWatch is a monitoring service for AWS cloud resources and the applications you run on AWS. You can use Amazon CloudWatch to collect and track metrics, collect and monitor log files, set alarms, and automatically react to changes in your AWS resources. Amazon CloudWatch can monitor AWS resources such as Amazon EC2 instances, Amazon DynamoDB tables, and Amazon RDS DB instances, as well as custom metrics generated by your applications and services, and any log files your applications generate. You can use Amazon CloudWatch to gain system-wide visibility into resource utilization, application performance, and operational health. You can use these insights to react and keep your application running smoothly
The Cloud Tech Guy