Exam PSE-Strata-Pro-24 Topic 1 Question 16 Discussion

* Single Pass Architecture (Answer C):
* Palo Alto Networks firewalls useSingle Pass Architecture, meaning the firewall processes traffic once for all enabled security services.
* This avoids duplicating inspection processes for multiple services like Threat Prevention, URL Filtering, and WildFire.
* With a single traffic inspection pass, the firewall applies all security policies without degrading performance, even as additional CDSS subscriptions are enabled.
* Management Data Plane Separation (Answer D):
* TheManagement PlaneandData Planeare separated on Palo Alto Networks firewalls.
* TheManagement Planehandles configuration, logging, and other administrative tasks, while the Data Planefocuses solely on processing and forwarding traffic.
* This architectural design ensures that enabling additional Cloud-Delivered Security Services does not impact throughput or compromise traffic handling efficiency.
* Why Not Parallel Processing (Answer A):
* While Parallel Processing is beneficial, it is not the main factor in maintaining consistent throughput as more services are enabled. TheSingle Pass Architectureis the key innovation here.
* Why Not Advanced Routing Engine (Answer B):
* The Advanced Routing Engine is not directly related to maintaining throughputwhen enabling CDSS subscriptions. It is more applicable to routing protocols and traffic engineering.
References from Palo Alto Networks Documentation:
* Single Pass Architecture White Paper
* Management and Data Plane Overview