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PCNSA · Question #144

Palo Alto Networks firewall architecture accelerates content inspection performance while minimizing latency using which two components? (Choose two.)

The correct answer is C. Parallel Processing Hardware D. Single Stream-based Engine. Palo Alto Networks firewalls achieve accelerated content inspection and minimal latency through their Single Pass Parallel Processing (SP3) architecture, which leverages both parallel processing hardware and a single stream-based inspection engine.

Submitted by carlos_mx· Apr 18, 2026Securing Traffic

Question

Palo Alto Networks firewall architecture accelerates content inspection performance while minimizing latency using which two components? (Choose two.)

Options

  • ANetwork Processing Engine
  • BPolicy Engine
  • CParallel Processing Hardware
  • DSingle Stream-based Engine

How the community answered

(50 responses)
  • A
    2% (1)
  • B
    4% (2)
  • C
    94% (47)

Why each option

Palo Alto Networks firewalls achieve accelerated content inspection and minimal latency through their Single Pass Parallel Processing (SP3) architecture, which leverages both parallel processing hardware and a single stream-based inspection engine.

ANetwork Processing Engine

Network Processing Engines (NPEs) primarily handle basic networking functions and packet forwarding, rather than the advanced content inspection acceleration or latency minimization of the SP3 architecture.

BPolicy Engine

The Policy Engine is responsible for matching traffic to configured security rules but does not directly contribute to the acceleration of content inspection or latency minimization in the same way as the dedicated processing architecture.

CParallel Processing HardwareCorrect

Parallel Processing Hardware allows the firewall to perform multiple security functions, such as encryption, decryption, and pattern matching, simultaneously across dedicated processors, significantly accelerating inspection.

DSingle Stream-based EngineCorrect

The Single Stream-based Engine, a core component of SP3 architecture, inspects all traffic classifications and threat prevention signatures in a single pass, eliminating latency caused by chaining multiple, separate inspection engines.

Concept tested: Palo Alto Networks SP3 architecture

Source: https://docs.paloaltonetworks.com/pan-os/10-2/pan-os-admin/getting-started/palo-alto-networks-product-architecture

Topics

#Firewall Architecture#Content Inspection#Performance#SP3

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