The correct answer is:
B. Restful API or the VMware API on the firewall or on the User-ID agent
Explanation:
Dynamic Tag Registration on Palo Alto Networks Next-Generation Firewalls (NGFWs) allows the firewall to automatically assign tags to IP addresses based on information received from external sources. These tags can then be used in security policies for granular control.
The methods to dynamically register tags are:
RESTful API: The firewall can receive tag information from external systems (e.g., cloud platforms, SIEMs, or custom scripts) via RESTful API calls.
VMware API: If the firewall is integrated with VMware environments, it can use the VMware API to dynamically tag virtual machines (VMs) based on attributes like VM names, tags, or other metadata.
User-ID Agent: The User-ID agent can also be used to register tags dynamically by correlating IP addresses with user or group information from directory services (e.g., Active Directory).
D is a correct one
https://docs.paloaltonetworks.com/pan-os/10-0/pan-os-admin/policy/monitor-changes-in-the-virtual-environment/use-dynamic-address-groups-in-policy.html
Correct is D
XML API—The firewall and Panorama support an XML API that uses standard HTTP requests to send and receive data. You can use this API to register IP addresses and tags with the firewall or Panorama. API calls can be made directly from command line utilities such as cURL or using any scripting or application framework that supports REST-based services. Refer to the PAN-OS XML API Usage Guide for details.
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