Palo Alto Networks PCNSA Exam Actual Questions

The Policy Optimizer feature enables an administrator to review the Security policy rule base for unused rules, unused applications, and shadowed rules. The Policy Optimizer provides information and recommendations to help optimize the Security policy rules and reduce the attack surface.The Policy Optimizer can also identify rules that can be converted to use App-ID instead of port-based criteria12.Reference:Policy Optimizer,Tips & Tricks: How to Identify Unused Policies on a Palo Alto Networks Device

The Type attribute column in the NGFW traffic logs indicates whether the log entry is for the start or end of the session. The possible values are START, END, DROP, DENY, and INVALID. The START value means that the log entry is for the start of the session, and the END value means that the log entry is for the end of the session.The other values indicate that the session was terminated by the firewall for various reasons12.Reference:Traffic Log Fields,Session Log Best Practices

The show system fqdn command displays the FQDN objects configured on the firewall and their resolved IP addresses. This can help confirm if the FQDN objects are resolved correctly and if they match the expected traffic. A shadow rule is a rule that is never matched because a preceding rule covers the same traffic. If a shadow rule uses FQDN objects, it is possible that the FQDN objects are not resolved or have different IP addresses than the traffic, causing the rule to be ineffective.

The IP Modulo session distribution method assigns sessions to dataplane processors (DPs) based on the modulo of the source and destination IP addresses. This method is suitable for environments that use NAT with a large number of translated IP addresses and ports. It ensures that sessions with the same source and destination IP addresses are processed by the same DP, regardless of the port numbers.This can improve performance and avoid out-of-order packets.