H12-921-V1.0: HCIE-Data Center Network (Written) V1.0

iMaster NCE-FabricInsight provides change assurance through network snapshot comparison and data plane intent verification. Snapshot comparison identifies differences in network configurations, entries, and performance states across points in time, while data plane verification checks network behavior against intended reachability, isolation, and consistency. Pre-change service simulation and tenant snapshot rollback are capabilities of the iMaster NCE-Fabric controller.