AWS Technical Essentials Practice 2025 – The All-in-One Guide to Mastering Your Exam Essentials!

Amazon CloudWatch is the ideal service for monitoring resource usage and billing within AWS. It provides a comprehensive suite of tools that enable users to collect and track metrics for various AWS resources, such as EC2 instances, RDS databases, and more. With CloudWatch, you can set up alarms to notify you when resource usage exceeds predefined thresholds, which helps in managing costs by optimizing resource utilization.

Additionally, CloudWatch integrates billing metrics that allow users to view their spending patterns in relation to their usage. This feature makes it easier to understand and monitor costs associated with different services, enabling efficient budget management and potential cost savings.

The other options, while useful for their specific purposes, do not directly address the need for monitoring resource usage and billing effectively. Amazon SNS is focused on messaging and notifications rather than monitoring and billing; Amazon VPC is about network configuration; and Amazon Redshift is a data warehousing service designed for data analytics rather than monitoring resource metrics or billing.