A single SageMaker Studio domain is used for development. You need automated alerts when SageMaker compute costs exceed a specified threshold. Which solution requires the least changes and works correctly?

The correct answer is to add resource tags by editing the SageMaker user profile within the Studio domain and configure AWS Budgets to send an alert when the threshold is reached. SageMaker Studio user profiles allow you to apply tags directly to resources launched by that user, making it an efficient way to track costs per user or project within a shared domain. AWS Budgets is the dedicated service for setting custom cost and usage budgets and receiving alerts when actual or forecasted costs exceed defined thresholds. Incorrect options: Using AWS Cost Explorer for alerts is incorrect because Cost Explorer is primarily for analyzing costs, not for setting up automated alerts based on thresholds. Modifying each user's IAM profile to add resource tags is less efficient and more complex than using SageMaker Studio user profiles, which are designed for managing user-specific configurations within Studio.