The nine key types include firewalls, IDPS, email security, NAC, VPNs, endpoint protection, DLP, segmentation, and cloud security with Zero Trust. Each layer serves a different purpose, from blocking threats at the perimeter to verifying users, securing endpoints, and. The Open Systems Interconnection (OSI) model is a conceptual framework used to understand and implement network protocols in seven distinct layers. Each layer has specific functions and responsibilities that contribute to the overall communication process. The application layer, which is the. Exploring the 7 Layers Mikella Marley Content Marketing Manager Every digital interaction relies on data traveling across multiple invisible layers. But without knowing how network communications function, security teams can't effectively tailor protections. Its features are: Network security works through multiple protective layers that control. Each layer of the OSI model interacts with the layer directly above and below it, encapsulating and transmitting data in a structured manner. The model is divided into seven layers. Its applications, relevant examples, devices used, and protocols associated with each layer is.