Which type of firewall is commonly part of a router firewall and allows or blocks traffic based on Layer 3 or 4 information?

IT Questions BankCategory: CCNA SecurityWhich type of firewall is commonly part of a router firewall and allows or blocks traffic based on Layer 3 or 4 information?

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.

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