What are "firewall rules" typically composed of?

Firewall rules are critical components in network security as they define the permissions and restrictions for data traffic. The correct composition of firewall rules typically includes the source IP address, destination IP address, protocol, and action.

The source IP address identifies where the traffic originates, while the destination IP address specifies where the traffic is headed. The protocol indicates the type of traffic being analyzed or filtered, such as TCP or UDP. Finally, the action defines how the firewall should respond to the traffic—whether to allow or deny it.

This configuration allows the firewall to accurately evaluate incoming and outgoing traffic based on the specified criteria, helping to enforce security policies effectively. By specifying these elements, administrators can tailor firewall behavior to meet security requirements and network design.

Other options may include elements that are relevant but do not capture the essential components needed to define a rule effectively. For instance, incorporating security levels or bandwidth does not fit the standard format of how firewall rules operate – those factors serve different purposes in network management and monitoring rather than defining rule criteria explicitly.