Free Paloalto Networks PCNSE Practice Exam with Questions & Answers | Set: 10

https://docs.paloaltonetworks.com/pan-os/9-1/pan-os-new-features/user-id-features/dynamic-user-groups

Use the dynamic user group in a policy to regulate traffic for the members of the group. You will need to configure at least two rules: one to allow initial traffic to populate the dynamic user group and one to deny traffic for the activity you want to prevent (in this case, questionable-activity). To tag users, the rule to allow traffic must have a higher rule number in your rulebase than the rule that denies traffic.

https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/policy/use-dynamic-user-groups-in-policy

For an application that is currently identified as unknown-tcp and has sessions that often remain idle for long periods, creating a custom application and using an application override rule is the most time-efficient solution.

C. The process involves:

Creating a custom application in the Palo Alto Networks firewall and configuring it with specific timeouts to accommodate the application's idle session behavior. This step ensures that the firewall does not prematurely close the application's sessions due to inactivity.

Next, creating an application override rule that references the custom application. This rule directs the firewall to identify traffic matching the rule criteria (such as source, destination, and port information) as the custom application, bypassing the App-ID engine's regular identification process.

This approach allows for the quick implementation of a solution that ensures the application is properly identified in traffic logs without undergoing threat scanning, meeting the requirements for both identification and reporting.

Wireshark (Option C) is a packet capture tool that provides detailed application traffic patterns (e.g., ports, protocols, payloads), essential for defining custom application signatures in PAN-OS.

To override a device and network setting applied by a template, you can either configure the setting locally on the firewall or override the setting on the template stack. Configuring the setting locally on the firewall will copy the setting to the local configuration of the device and will no longer be controlled by the template. Overriding the setting on the template stack will apply the setting to all the firewalls that are assigned to the template stack, unless the setting is also overridden locally on a firewall. Changing the setting on the global template will affect all the firewalls that inherit the setting from the template, which is not desirable in this scenario. Configuring a service route for DNS on a different interface will not change the DNS server address, but only the interface that the firewall uses to reach the DNS server. References:

Override a Template Setting

How to override panorama pushed template configuration on the local firewall

Overriding Panorama Template settings

One of the potential causes of a failed install when upgrading Panorama to PAN-OS is having outdated plugins. Plugins are software extensions that enable Panorama to interact with Palo Alto Networks cloud services and third-party services. Plugins have dependencies on specific PAN-OS versions, so they must be updated before or after upgrading Panorama, depending on the plugin compatibility matrix2. If the plugins are not updated accordingly, the upgrade process may fail or cause issues with Panorama functionality3. References: Panorama Plugins Upgrade/Downgrade Considerations, Troubleshoot Your Panorama Upgrade, PCNSE Study Guide (page 54)

Schedule content updates so that they download-and-install automatically. Then, set a Threshold that determines the amount of time the firewall waits before installing the latest content. In a security-first network, schedule a six to twelve hour threshold. https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-admin/threat-prevention/best-practices-for-content-and-threat-content-updates/best-practices-security-first.html#id184AH00F06E

https://docs.paloaltonetworks.com/pan-os/10-1/pan-os-upgrade/software-and-content-updates/best-practices-for-app-and-threat-content-updates/best-practices-security-first