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PCNSE · Question #182

During the packet flow process, which two processes are performed in application identification? (Choose two.)

The correct answer is A. Pattern based application identification B. Application override policy match. During the application identification phase of packet processing, the firewall performs pattern-based identification to determine the application and checks for any application override policies that might explicitly define the application.

Submitted by jian89· Apr 18, 2026Core Concepts

Question

During the packet flow process, which two processes are performed in application identification? (Choose two.)

Options

  • APattern based application identification
  • BApplication override policy match
  • CApplication changed from content inspection
  • DSession application identified.

How the community answered

(26 responses)
  • A
    92% (24)
  • C
    4% (1)
  • D
    4% (1)

Why each option

During the application identification phase of packet processing, the firewall performs pattern-based identification to determine the application and checks for any application override policies that might explicitly define the application.

APattern based application identificationCorrect

Pattern-based application identification is a core mechanism where the firewall uses signatures and heuristics to detect and classify applications based on known patterns in the traffic.

BApplication override policy matchCorrect

An application override policy allows an administrator to explicitly define an application for specific traffic flows, bypassing standard application identification and forcing a particular application classification.

CApplication changed from content inspection

Application identification typically occurs *before* content inspection. While content inspection (e.g., Threat Prevention) might refine or confirm an application, the initial identification doesn't usually *change* from it in the sequence described.

DSession application identified.

The 'Session application identified' is an *outcome* or *result* of the application identification process, not a process step itself.

Concept tested: Palo Alto Networks Application Identification processes

Source: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/app-id/how-app-id-works.html

Topics

#Palo Alto Networks#App-ID#Packet Flow#Application Identification

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