Which component of the Cisco SD-WAN secure extensible network provides a single pane of glass approach to network monitoring and configuration?

APIC-EM is a network controller for traditional enterprise networks and is not the management component for Cisco SD-WAN.

vSmart controllers are control plane devices responsible for policy distribution and routing, not for providing the overall network management interface.

The vManage NMS serves as the centralized management, orchestration, and monitoring platform for the Cisco SD-WAN solution. It provides a single graphical user interface (GUI) for configuring policies, deploying devices, troubleshooting, and gaining comprehensive visibility into the health and performance of the entire SD-WAN fabric, thus offering a single pane of glass approach.

vBond controllers are orchestrators that facilitate device onboarding and discovery, but they do not provide the single pane of glass for ongoing monitoring and configuration.