Next-generation firewall (NGFW)
Also called: NGFW
Course: AP® Cybersecurity Shows up in: Unit 3: Securing Networks
A firewall with stateless and stateful filtering plus advanced features such as intrusion prevention, deep packet inspection and filtering by application type.
Appears in the course and exam description (CED): 3.4.A.4
Why it matters in Unit 3
It can block a risky application even on an allowed port.
Example
Block a file-sharing app while still allowing normal web browsing.
Learn it properly, with a checkpoint 3.4 Protecting Networks: Firewalls