COMPUTER NETWORKING

Detailed explanation-1: -A packet filtering firewall is considered a stateless firewall because it examines each packet and uses rules to accept or reject each packet without considering whether the packet is part of a valid and active session.

Detailed explanation-2: -4. Stateful inspection firewall. State-aware devices not only examine each packet, but also keep track of whether or not that packet is part of an established TCP or other network session.

Detailed explanation-3: -Static Packet Filter The static packet filtering firewall operates only at the network layer (layer 3) of the OSI model and does not differentiate between application protocols. This type of firewall decides whether to accept or deny individual packets, based on examining fields in the packet’s IP and protocol headers.

Detailed explanation-4: -Stateful inspection, also known as dynamic packet filtering, is a firewall technology that monitors the state of active connections and uses this information to determine which network packets to allow through the firewall.

Detailed explanation-5: -Stateful Inspection Firewall A combination of Packet filtering and circuit level Firewalls. These Firewalls monitor all active sessions or connections, giving them the most power in evaluating whether networks packets should be permitted or blocked.