Exam PCNSE topic 1 question 250 discussion

According to the PCNSE study guide page 75, URL match is part of Security Processing

Malicious question. I'm gonna go with "B" because URL Filtering is NOT pattern based, this is one of the APP-ID components "Pattern based application identification".

Palo Alto Networks firewalls use a single-pass architecture where traffic is processed once and all security functions (App-ID, Content-ID, URL Filtering, etc.) are applied during that single inspection. In the case of URL filtering, the firewall uses single-pass pattern matching on the data plane to efficiently evaluate URLs against: Predefined and custom URL categories URL filtering profiles and rules Threat prevention signatures, if applicable This ensures fast and efficient classification and enforcement without reprocessing the traffic multiple times. https://www.paloaltonetworks.com/resources/whitepapers/single-pass-parallel-processing-architecture.viewer.html

Answer is C, according to palo alto documentation.

Palo Alto Networks firewalls use a single-pass architecture, including single-pass pattern matching on the data plane, to efficiently process and inspect network traffic, including URL filtering. During this single-pass, the firewall inspects the content of the traffic for various security aspects, including URL patterns for URL filtering.

SP3 scans the contents based on the same stream and it uses uniform signature matching patterns to detect and block threats.

URL is matched by security processing on the data plane. Security processing handles App-ID, User-ID, URL match, policy match, SSL/IPsec, decompression. Signature match processing handles all the Threat prevention related operations/signature matching such as signature matching for exploits (vulnerability), virus, spyware plus credit card number, social security numbers. Signature matching component is capable of single-pass patern match. Both security processing and signature matching components are data plane components.

I'd say B, but the marketing phrase is usually the correct answer.

C. PA uses single pass architecture. One of the key elements to the single pass architecture is summed up accurately and succinctly with the phrase “scan it all, scan it once”.

Agree on B, Yes it is part of the Single Pass Software Architecture, but no, it is not a pattern

https://media.paloaltonetworks.com/documents/Single_Pass_Parallel_Processing_Architecture.pdf

The answer is B.

The answer is B The question is asking for which “Component” matches “URL” patterns? URL matching happens at “security processing on the data plane” Source: PCNSA Study Guide “illustration depicts the architecture of a Palo Alto Networks Next-Generation Firewall.”

The correct answer is C. "Palo Alto Networks Single Pass Software Architecture ... Content-ID: a single hardware-accelerated signature matching engine that uses a uniform signature format to scan traffic for data (credit card numbers, social security numbers, and custom patterns) and threats (vulnerability exploits – IPS, viruses, and spyware) plus a URL categorization engine to perform URL filtering. " https://media.paloaltonetworks.com/documents/Single_Pass_Parallel_Processing_Architecture.pdf