You are redesigning the perimeter security of a small enterprise. Management requires a single device capable of performing deep packet inspection, identifying and controlling applications regardless of port, and providing an integrated intrusion-prevention capability. Which device best meets these requirements?
A next-generation firewall (NGFW) combines stateful inspection with deep packet inspection, application awareness and control, and an integrated intrusion-prevention system. These combined functions allow one device to detect and block sophisticated threats at the application layer. Traditional firewalls perform only stateful inspection, routers and Layer-3 switches focus on routing and switching, and therefore none of them provide the full DPI, application control, and IPS feature set found in an NGFW.
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Cisco CCNA 200-301
Network Fundamentals
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