Paloalto Networks Updated PCNSE Exam Questions and Answers by ellie-mae

Palo Alto Networks best practices dictate upgrading Panorama-managed environments in this order: Panorama first, then log collectors, and finally firewalls. Panorama must be on the latest (or compatible) version to manage upgraded devices and push configurations. Log collectors follow to ensure log compatibility, and firewalls last to maintain operational continuity.

traffic log would list an application as “not-applicable” if the firewall denied the traffic before the application match could be performed. This can happen if the traffic matches a security rule that is set to deny based on any parameter other than the application, such as source, destination, port, service, etc1. In this case, the firewall does not inspect the application data and discards the traffic, resulting in a “not-applicable” entry in the application field of the traffic log1.

In Palo Alto Networks firewalls, the order of rule evaluation is critical for traffic enforcement. To ensure high priority evaluation, rules should be configured at the top of the rulebase so they are matched before others. The Security Pre-Rules are designed for shared policies across multiple device groups in Panorama, and by placing the block action rules at the top of the Pre-Rules, it guarantees that these rules are evaluated first, before any device-specific or post-rules.For verification, please refer to the Palo Alto Networks "PAN-OS® Administrator’s Guide" or the official configuration documentation for Panorama and device group rules.