Labels:text | screenshot | number | parallel | font | yellow OCR: DIFFERENT FIREWALLS WORK AT DIFFERENT LAYERS ICPAP: Severaves model Application Presentation Application User laver Session Transport Transport Network operating Intemet system? lave: 2. Date-Link Ever Network Physical Stateful Inspection, Packet Filtering, and Application Gateways. Stateful inspection and packet filtering function entirely within the operating systemn, while application gateways work within the user
