NetSec-Pro Exam Dumps : Palo Alto Networks Network Security Professional

Negated source addressesexclude traffic from the specified region. To avoid accidental connectivity loss for trafficfrom that region, create a separate Security policy toexplicitly permit it.

“When you use a negated region in a Security policy rule, ensure to create an additional Security policy to permit traffic from the excluded (negated) region to avoid unintentional drops.”

(Source: Prisma Access Policy Best Practices)

This ensuresexplicit inclusivity for the excluded region, maintaining reliable connectivity.

Palo Alto Networks requires upgrading to thenext major feature releasebefore moving to newer releases. This ensures stability and compatibility.

“When upgrading across multiple major PAN-OS releases, you must upgrade to each intermediate major feature release. Skipping major releases is not supported.”

(Source: Upgrade Considerations)

For PAN-OS 9.1 → 11.2, the proper path is:

9.1 → 10.0 → 11.2

When implementing SSL Forward Proxy decryption for outbound traffic, two key challenges that must be evaluated are:

Incomplete certificate chains: This occurs when the firewall cannot validate the entire certificate chain for a site, which may cause decryption failures.

Certificate pinning: Applications like banking apps may use certificate pinning to prevent MITM (man-in-the-middle) attacks, and these applications will break if SSL Forward Proxy is used.

“When decrypting outbound SSL traffic, you must consider incomplete certificate chains, which can cause decryption to fail if the firewall cannot validate the entire chain. Also, be aware of certificate pinning in applications that prevents decryption by rejecting forged certificates.”

(Source: Palo Alto Networks Decryption Concepts)