Which capability of PAN-OS would address the customer’s lack of visibility?

A prospective customer currently uses a firewall that provides only Layer 4 inspection and protections. The customer sees traffic going to an external destination, port 53, but cannot determine what Layer 7 application traffic is going over that port.

Which capability of PAN-OS would address the customer’s lack of visibility?
A . Device ID, because it will give visibility into which devices are communicating with external destinations over port 53
B . single pass architecture (SPA), because it will improve the performance of the Palo Alto Networks Layer 7 inspection
C . User-ID, because it will allow the customer to see which users are sending traffic to external destinations over port 53
D . App-ID, because it will give visibility into what exact applications are being run over that port and allow the customer to block unsanctioned applications using port 53

View Answer

Answer: D