FUNDAMENTALS OF COMPUTER

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: -A packet filtering firewall is a network security technique that regulates data flow to and from a network. It is a security mechanism that allows packets to move across networks while controlling their flow through the use of a set of rules, protocols, IP addresses, and ports.

Detailed explanation-3: -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-4: -There are three types of firewalls based on how you decide to deploy them: hardware, software, and cloud-based firewalls.

Detailed explanation-5: -Stateful firewalls are capable of monitoring and detecting states of all traffic on a network to track and defend based on traffic patterns and flows. Stateless firewalls, however, only focus on individual packets, using preset rules to filter traffic.