Dynamic Address Groups provide dynamic membership based on tags:

A. Its update requires "Commit" to enforce membership mapping: Dynamic Address Groups update their membership automatically based on tag changes. A commit is not required for the group membership to reflect tag changes. The commit is required to apply the security policy using the dynamic address group.

B. It allows creation and enforcement of consistent Security policy across multiple cloud environments: This is a key benefit. Tags and Dynamic Address Groups can be used to create consistent security policies across different cloud environments, simplifying multi-cloud management.

C. Tags cannot be defined statically on the firewall: Tags can be defined statically on the firewall, as well as dynamically through integrations with cloud providers or other systems.

D. It uses tags as filtering criteria to determine IP address mapping to a group: This is the core functionality of Dynamic Address Groups. They use tags to dynamically determine which IP addresses should be included in the group.

E. Its maximum number of registered IP addresses is dependent on the firewall platform: The capacity of Dynamic Address Groups is limited by the hardware/virtual resource capacity of the firewall.

References:

The Palo Alto Networks firewall administrator's guide provides detailed information on Dynamic Address Groups, including how they use tags and their limitations.