Palo Alto Networks NGFW Engineer — Question 57

When configuring a physical interface on a Palo Alto Networks firewall, which IP-based service is only available if the interface is set to Layer 3 mode?

Answer options

• A. DDNS client
• B. NetFlow export
• C. QoS
• D. Link monitoring

Correct answer: A

Explanation

The DDNS client is specifically designed to work with Layer 3 interfaces, allowing dynamic DNS updates based on the interface's IP address. The other options, while useful, do not require the interface to be set to Layer 3 and can function in different operational modes.