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. You want to install a firewall that can reject packets that are not part of an 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 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: -Packet-filtering firewalls, the most common type of firewall, examine packets and prohibit them from passing through if they don’t match an established security rule set. This type of firewall checks the packet’s source and destination IP addresses.

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.