Develop working knowledge of enterprise network assurance activities, including the deployment and use of tools that monitor and validate network conditions. ENTERONE CPLL-ENNA-V1.1 addresses the operational discipline of collecting network visibility, evaluating observed behavior, and using validation activities to assess an enterprise environment. The subject matter is relevant to network engineers and operations staff who need to understand how assurance tooling supports ongoing network observation. The course scope centers on network assurance rather than general networking theory. Coverage includes deploying assurance tools, using those tools for monitoring, and applying validation practices to enterprise networks. That focus makes the material applicable when teams need a structured understanding of how monitoring and validation fit into network operations, troubleshooting workflows, and assessment of network behavior. Version 1.1 identifies this ENNA training offering. Its emphasis on both deployment and day-to-day use distinguishes it from introductory material that only describes monitoring concepts. Learners work through the relationship between assurance tools, monitored network conditions, and validation of enterprise network operation, making the course relevant where network visibility and evidence-based assessment are required.