Palo Alto Networks Certified Network Security Administrator (PCNSA)Palo Alto Networks Security PlatformMedium
A network administrator is troubleshooting an issue where a newly deployed application is being blocked by the Palo Alto Networks firewall. The administrator suspects that the firewall is incorrectly identifying the application. Which security service is responsible for identifying applications, regardless of port, protocol, or evasive tactics, and is crucial for addressing this issue?
- AApp-ID
- BThreat Prevention
- CContent-ID
- DUser-ID
Show answer & explanationAnswer & explanation
Correct answer: A. App-ID
App-ID is the Palo Alto Networks technology responsible for identifying applications accurately, regardless of port, protocol, encryption, or evasive techniques. It's essential for granular application visibility and control.
Why the other options are wrong
- B. Threat Prevention provides protection against known and unknown threats, relying on App-ID for context but not performing application identification itself.
- C. Content-ID inspects the content of traffic for sensitive data or threats, not for identifying the application itself.
- D. User-ID maps users to IP addresses, not for application identification.
App-ID
App-ID is a core Palo Alto Networks technology that accurately identifies applications traversing the firewall, regardless of port, protocol, encryption, or evasive techniques, enabling granular application-based security policies.
- Identifies applications, not just ports/protocols
- Uses multiple classification techniques (signatures, heuristics, decryption)
- Enables application-aware security policies
- Crucial for preventing unknown applications and controlling sanctioned ones
Memory trick: App-ID: It's the 'ID' for every 'App', no matter the disguise.