Which Azure service provides visibility and control of network traffic between resources?

The Azure service that provides visibility and control of network traffic between resources is Azure Network Watcher. This service is specifically designed for network monitoring, diagnostics, and visualization in Azure environments. It offers tools and features such as Connection Monitor, Traffic Analytics, and Packet Capture, which allow administrators to analyze and manage the flow of data across virtual networks and between network resources.

By using Azure Network Watcher, you can gain insights into network performance, identify potential issues, and ensure that network configurations meet your organization's requirements. This capability is essential for maintaining the health and security of network operations in Azure architectures.

The other services mentioned have different focuses: Azure Monitor is centered around monitoring the performance and health of applications and resources across Azure, Azure Sentinel is a cloud-native Security Information and Event Management (SIEM) service for threat detection and response, and Azure Security Center is designed to enhance security posture and protect against threats. While these services contribute to overall resource management, they do not specifically target visibility and control of network traffic the way Azure Network Watcher does.