which type of firewall is commonly part of a router firewall and allows or blocks traffic based on layer 3…

which type of firewall is commonly part of a router firewall and allows or blocks traffic based on layer 3 or 4 information?\no stateful firewall\no next generation firewall\no packet filtering firewall\no proxy firewall

which type of firewall is commonly part of a router firewall and allows or blocks traffic based on layer 3 or 4 information?\no stateful firewall\no next generation firewall\no packet filtering firewall\no proxy firewall

Answer

Brief Explanations:

Packet - filtering firewalls are commonly part of router firewalls and operate by allowing or blocking traffic based on Layer 3 (network - layer, e.g., IP addresses) or Layer 4 (transport - layer, e.g., port numbers) information. Stateful firewalls keep track of the state of network connections. Next - generation firewalls have more advanced features like application - awareness. Proxy firewalls act as intermediaries between clients and servers.

Answer:

C. packet filtering firewall