IBM Security Analyst Practice Test 2025 – Complete Exam Prep Resource

The identification of packet-filtering firewalls and stateful inspection firewalls as common types of firewalls is accurate. Packet-filtering firewalls work by inspecting packets of data and making decisions based on predefined rules, allowing or blocking traffic based on IP addresses, port numbers, and protocols. This type of firewall operates at the network layer and is effective for basic filtering tasks.

Stateful inspection firewalls, on the other hand, maintain the state of active connections and make decisions based on the context of the traffic, such as whether a packet is part of an established connection. This feature allows them to provide enhanced security because they can track the state of the connection and can make smarter decisions regarding traffic.

Both of these firewall types are fundamental components in network security, allowing organizations to protect their networks by controlling incoming and outgoing traffic based on security rules and policies.

Other options presented mix firewall functions with unrelated security technologies, which do not fit the classification of common types of firewalls, thus distinguishing option A as the appropriate choice.