Palo Alto Networks (PANW) System Engineer (PSE) Practice Exam

Which Security policy rule type allows traffic from a zone to the same zone?

1. Intrazone

2. Interzone

3. Zero Trust

4. Universal

The correct answer is: Intrazone

The correct answer is "Intrazone." This type of security policy rule specifically allows traffic to flow within the same zone. In a Palo Alto Networks firewall context, zones are used to segregate and clearly define different segments of a network, such as trust and untrust zones. An Intrazone rule permits traffic that originates from one zone and stays within that same zone, which is often used for internal communication between devices or applications that reside within the same segment. By enabling this type of rule, organizations can control traffic while maintaining open communication for devices that belong to the same zone, ensuring efficient network operations without unnecessarily complicating the security posture. This is particularly useful for scenarios where devices within the same zone need to communicate freely, such as different servers in a data center that need to interact with one another without the additional overhead of processing interzone rules. The other options refer to different types of rules or concepts in a network security context, but they do not strictly relate to allowing traffic from a zone to the same zone.