Free Palo Alto Networks PCNSE Exam Actual Questions

The questions for PCNSE were last updated On May 7, 2025

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Question No. 1

Phase two of a VPN will not establish a connection. The peer is using a policy-based VPN configuration.

What part of the configuration should the engineer verify?

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Question No. 2

Which Panorama mode should be used so that all logs are sent to. and only stored in. Cortex Data Lake?

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Correct Answer: D

Question No. 3

How can a firewall engineer bypass App-ID and content inspection features on a Palo Alto Networks firewall when troubleshooting?

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Correct Answer: B

An application override (Option B) bypasses App-ID and content inspection by forcing the firewall to classify traffic as the custom app, skipping deeper analysis. The custom app's properties (e.g., ports) define the match, and no security profiles are applied.

Option A (no scanning options) still processes App-ID. Option C (no profiles) skips inspection but not App-ID. Option D (disable SRI) only limits server response checks. Documentation confirms overrides for bypassing.


Question No. 4

Which action can be taken to immediately remediate the issue of application traffic with a valid use case triggering the decryption log message, "Received fatal alert UnknownCA from client"?

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Correct Answer: B

The 'Received fatal alert UnknownCA from client' log indicates the client rejects the firewall's decryption certificate because it doesn't trust the CA. For a valid use case, adding the certificate's Common Name (CN) to the SSL Decryption Exclusion List (Option B) bypasses decryption for that site, allowing traffic to proceed without interruption. This is an immediate fix within the firewall's control.

Option A (revocation checking) addresses different issues. Option C (check expired certificates) is diagnostic, not immediate. Option D (contact site admin) is external and slow. Documentation recommends exclusions for such errors.