PCNSC Exam Dumps and Practice Questions

If a firewall that was previously connected to a User-ID agent server now shows disconnected, the likely cause is:

D . The firewall was upgraded to a PAN-OS version that is not compatible with the agent version

When a firewall is upgraded to a new version of PAN-OS, there can be compatibility issues with the existing User-ID agent if it is not updated accordingly. This can result in the firewall being unable to communicate with the User-ID agent, showing it as disconnected.

Palo Alto Networks - User-ID Agent Compatibility: https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/user-id/user-id-agent

To enable access to a public-facing web server for both internal and internet clients using the FQDN public.webserver.acme.com, which resolves to the public address 99.99.99.2, the necessary combination of NAT policies is:

C . Option C

Policy 11: DMZ to Untrust

Source Zone: DMZ

Destination Zone: Untrust

Destination Address: Web_Server_Public_99.99.99.2

Destination Translation: address: Web_Server_Private_172.16.1.2

Policy 12: Untrust to Untrust

Source Zone: Untrust

Destination Zone: Untrust

Destination Address: Web_Server_Public_99.99.99.2

Destination Translation: address: Web_Server_Private_172.16.1.2

These policies ensure that traffic destined for the public IP address 99.99.99.2 from both the DMZ and Untrust zones is properly translated to the internal web server's private IP address 172.16.1.2.

Palo Alto Networks - NAT Configuration: https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/networking/nat/nat-policy-rules

Disabling App-IDs as part of a content update can be valid in the following circumstances:

B . When you want to immediately benefit from the latest threat prevention: Disabling certain App-IDs can help ensure that the latest threat prevention measures are applied without waiting for the App-IDs to be fully tested in a specific environment. This can be crucial in quickly addressing emerging threats.

D . When an organization operates a mission-critical network and has zero tolerance for downtime: In such environments, administrators might temporarily disable new or modified App-IDs to avoid potential disruptions caused by unverified or untested App-IDs. This ensures that the network remains stable and functional while the new App-IDs are evaluated in a controlled manner.

Palo Alto Networks - Best Practices for Application and Threat Content Updates: https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/app-id/manage-app-id/application-and-threat-content-updates

Palo Alto Networks - Application and Threat Content Release Notes: https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-release-notes/application-and-threat-content-release-notes

To capture a PCAP on your Panorama to troubleshoot DNS resolution issues, the appropriate CLI command is:

B . tcpdump snaplen 0 filter 'port 53'

This command captures packets with no size limit (snaplen 0) and filters the traffic for port 53, which is used by DNS. This is the most straightforward and comprehensive way to capture all DNS traffic for analysis.

Palo Alto Networks - Using tcpdump on PAN-OS: https://knowledgebase.paloaltonetworks.com

Palo Alto Networks - Troubleshooting Network Connectivity Issues: https://docs.paloaltonetworks.com

For a customer who wishes to actively use multiple pathways to the same destination, the recommended routing configuration is:

B . ECMP (Equal-Cost Multi-Path)

ECMP allows the use of multiple paths to the same destination with equal cost metrics, enabling load balancing and redundancy. It is suitable for scenarios where multiple pathways are desired for traffic distribution and fault tolerance.

Palo Alto Networks - ECMP Overview: https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-networking-admin/ecmp

Palo Alto Networks - Configuring ECMP: https://knowledgebase.paloaltonetworks.com