Which AWS service can be used to manage and monitor AWS resources and applications?

AWS Systems Manager is an invaluable service for managing and monitoring AWS resources and applications effectively. It provides a comprehensive set of capabilities that include resource inventory management, configuration management, and automation of operational tasks across AWS resources. With Systems Manager, users can gain insights into resource utilization, operational status, and performance metrics, enabling them to maintain a secure and compliant environment.

One of the key features of Systems Manager is its ability to consolidate operational data from multiple sources, making it easier to understand the relationships and dependencies between resources. Additionally, it integrates seamlessly with other AWS services, allowing administrators to automate routine tasks such as patch management, software inventory, and log collection.

The other services listed have distinct purposes. AWS Lambda is designed for running code in response to events and managing backend services without server management, while Amazon RDS is focused on database management and operations. Amazon SNS serves as a messaging service for sending alerts and notifications. While all these services contribute to the AWS ecosystem, they do not provide the same overarching management and monitoring capabilities that AWS Systems Manager offers.