COMPUTER NETWORKING

Detailed explanation-1: -Packet-filtering firewalls make processing decisions based on network addresses, ports, or protocols. Packet-filtering firewalls are very fast because there is not much logic going behind the decisions they make. They do not do any internal inspection of the traffic. They also do not store any state information.

Detailed explanation-2: -The packet filter firewall, commonly placed on a boundary router, can block certain attacks, filter unwanted protocols and perform simple access control. Packet filter firewalls are very suitable for high-speed environments where logging and user authentication with network resources are not important.