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Palo Alto Networks Certified Network Security Engineer Questions 311–315 (page: 64)

Updated On: 10-Feb-2026

During the process of developing a decryption strategy and evaluating which websites are required for corporate users to access, several sites have been identified that cannot be decrypted due to technical reasons. In this case, the technical reason is unsupported ciphers. Traffic to these sites will therefore be blocked if decrypted.

How should the engineer proceed?

  1. Create a Security policy to allow access to those sites
  2. Install the unsupported cipher into the firewall to allow the sites to be decrypted
  3. Add the sites to the SSL Decryption Exclusion list to exempt them from decryption
  4. Allow the firewall to block the sites to improve the security posture

Answer(s): C



A network security engineer wants to prevent resource-consumption issues on the firewall.
Which strategy is consistent with decryption best practices to ensure consistent performance?

  1. Use Decryption profiles to downgrade processor-intensive ciphers to ciphers that are less processor-intensive
  2. Use Decryption profiles to drop traffic that uses processor-intensive ciphers
  3. Use PFS in a Decryption profile for higher-priority and higher-risk traffic, and use less processor-intensive decryption methods for lower-risk traffic
  4. Use RSA in a Decryption profile for higher-priority and higher-risk traffic, and use less processor-intensive decryption methods for lower-risk traffic

Answer(s): C



With the default TCP and UDP settings on the firewall, what will be the identified application in the following session?

  1. unknown-udp
  2. not-applicable
  3. insufficient-data
  4. incomplete

Answer(s): A



A remote administrator needs firewall access on an untrusted interface. Which two components are required on the firewall to configure certificate-based administrator authentication to the web UI? (Choose two.)

  1. client certificate
  2. certificate profile
  3. certificate authority (CA) certificate
  4. server certificate

Answer(s): B,C



When configuring forward error correction (FEC) for PAN-OS SD-WAN, an administrator would turn on the feature inside which type of SD-WAN profile?

  1. Traffic Distribution profile
  2. Path Quality profile
  3. Certificate profile
  4. SD-WAN interface profile

Answer(s): D



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