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Palo Alto Networks Certified Network Security Engineer Questions 256–260 (page: 53)

Updated On: 10-Feb-2026

What happens when an A/P firewall cluster synchronizes IPsec tunnel security associations (SAs)?

  1. Phase 2 SAs are synchronized over HA2 links.
  2. Phase 1 and Phase 2 SAs are synchronized over HA2 links.
  3. Phase 1 SAs are synchronized over HA1 links.
  4. Phase 1 and Phase 2 SAs are synchronized over HA3 links.

Answer(s): A



A security engineer needs to mitigate packet floods that occur on a set of servers behind the internet facing interface of the firewall.

Which Security Profile should be applied to a policy to prevent these packet floods?

  1. Vulnerability Protection profile
  2. DoS Protection profile
  3. Data Filtering profile
  4. URL Filtering profile

Answer(s): B


Reference:

https://docs.paloaltonetworks.com/pan-os/9-0/pan-os-admin/policy/security-profiles



What are three reasons why an installed session can be identified with the "application incomplete" tag? (Choose three.)

  1. There was no application data after the TCP connection was established.
  2. The client sent a TCP segment with the PUSH flag set.
  3. The TCP connection was terminated without identifying any application data.
  4. There is not enough application data after the TCP connection was established.
  5. The TCP connection did not fully establish.

Answer(s): A,C,E



Which three statements correctly describe Session 380280? (Choose three.)

  1. The application was initially identified as "ssl."
  2. The session has ended with the end-reason "unknown."
  3. The session cid not go through SSL decryption processing.
  4. The application shifted to "web-browsing."
  5. The session went through SSL decryption processing.

Answer(s): A,D,E



An administrator's device-group commit push is failing due to a new URL category.
How should the administrator correct this issue?

  1. update the Firewall Apps and Threat version to match the version of Panorama
  2. change the new category action to "alert" and push the configuration again
  3. ensure that the firewall can communicate with the URL cloud
  4. verity that the URL seed tile has been downloaded and activated on the firewall

Answer(s): A



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