Which AWS service is referred to as the operations hub for applications and resources?

AWS Systems Manager serves as the operations hub for applications and resources in AWS. This service allows users to gain operational insights and manage their AWS resources effectively. It provides a comprehensive suite of tools designed to monitor, manage, and automate the operations of applications across various AWS services.

With Systems Manager, users can streamline resource management through capabilities such as inventory management, patch management, configuration management, and automation workflows. Additionally, it enables secure access to instances using Session Manager, allowing for troubleshooting and management without the need to open inbound ports or manage SSH keys.

On the other hand, while the AWS Management Console is a web-based interface for accessing all AWS services, it does not provide the same level of operational management capabilities as Systems Manager. AWS Trusted Advisor focuses on providing recommendations for best practices related to cost optimization, performance, security, fault tolerance, and service limits, but it is not an operations hub. Amazon VPC is a service that enables users to create isolated networks within the AWS cloud, but it does not manage applications and resources like Systems Manager does.

Therefore, AWS Systems Manager stands out as the central hub for effectively managing AWS operations.