Which of the following approaches can help ensure that you do not exceed the budget each month?
Consolidate your accounts so you have a single bill for all accounts and projects
Set up auto scaling with CloudWatch alarms using SNS to notify you when you are running too many Instances in a given account
Set up CloudWatch billing alerts for all AWS resources used by each project, with a notification occurring when the amount for each resource tagged to a particular project matches the budget allocated to the project.
Set up CloudWatch billing alerts for all AWS resources used by each account, with email notifications when it hits 50%. 80% and 90% of its budgeted monthly spend
Explanations:
Consolidating accounts allows for a single bill but does not provide specific budget control or alerts per project, making it harder to track individual project costs against their budgets.
Setting up auto scaling and CloudWatch alarms can help manage resource usage but does not directly monitor costs or notify you when a budget limit is approached. It focuses on instance counts rather than budget adherence.
Setting up CloudWatch billing alerts for resources tagged to specific projects allows for precise tracking against each project’s budget, providing notifications when costs approach the allocated limit, thus ensuring better budget compliance.
While CloudWatch billing alerts for accounts can notify you when approaching budget thresholds, it does not provide project-level granularity needed to ensure individual project budgets are not exceeded.
I rank that the answer is:
Set up CloudWatch billing alerts for all AWS resources used by each project, with a notification occurring when the amount for each resource tagged to a particular project matches the budget allocated to the project.