Paloalto Networks NetSec-Pro Dumps Questions Answers

Advanced DNS Security uses a signature policy to sinkhole malicious DNS queries and prevent them from resolving.

“The DNS Security service integrates with Anti-Spyware profiles, and you must configure signature policy settings to sinkhole malicious queries. This proactively stops traffic to known malicious domains.”

(Source: Configure DNS Security)

Sinkholing ensures that DNS queries to malicious FQDNs are redirected to a safe IP, preventing compromise.

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)

The SP3 architecture of Palo Alto NGFWs ensures that additional security services (CDSS) only cause a minor reduction in performance , as traffic is inspected once in a single pass.

“The single-pass parallel processing (SP3) architecture performs application identification and security enforcement simultaneously in one pass, resulting in only minor performance impacts when enabling multiple security services.”

(Source: SP3 Architecture)

Unlike traditional multi-pass engines, SP3 architecture optimizes performance while delivering comprehensive security.