A. The service packets enter the firewall on the port assigned from the external service. The server sends its response to the configured destination interface and destination IP address

B. The service packets exit the firewall on the port assigned for the external service. The server sends its response to the configured source interface and source IP address

C. Service routes provide access to external services such as DNS servers external authentication servers or Palo Alto Networks services like the Customer Support Portal

D. The service route is the method required to use the firewall's management plane to provide services to applications