Which type of firewall is commonly part of a router firewall and allows or blocks traffic based on Layer 3 or 4 information?
- next generation firewall
- stateful firewall
- packet filtering firewall
- proxy firewall
Explanation: A packet filtering firewall uses a simple policy table look-up that filters traffic based on specific criteria. These firewalls are usually part of a router firewall. They permit or deny traffic based on Layer 3 and Layer 4 information.
Related exam: Module 9: Quiz – Firewall Technologies Network Security
Related exam: Network Defense: Module 5.3.2 Firewall Technologies Quiz
