- ACloudGuru course.
- Whizlabs practice tests. After each test, note down the concepts you had difficulties with.
- practice tests by Jon Bonso at Udemy. Again, after each test, note down the concepts you had difficulties with.
AWS has a white paper that is 85 pages explaining to you what a well architected framework is - https://d1.awsstatic.com/whitepapers/architecture/AWS_Well-Architected_Framework.pdf
AWS white paper summarized to attain operational excellence, a key AWS service is AWS cloud formation which lets you create templates that you can use to consistently provision whatever resources that you want for your application to attain the security pillar you need to use the key AWS service IAM to control user and programmatic access you can use cloudtrail to record API calls and VPC to launch resources into a virtual network for reliability you can use AWS shield to safe guard against DDOS attacks for performance the key service is cloudwatch which you can use to see how your services are holding up for cost optimization, you can use the cost explorer to see how much services are costing you
AWS also has 6 FAQs that covers some of the key services in this exam: