Refer to the image. An administrator is tasked with correcting an NTP service configuration for firewalls that cannot use the Global template NTP servers. The administrator needs to change the IP address to a preferable server for this template stack but cannot impact other template stacks.
How can the issue be corrected?
To correct the NTP service configuration for the firewalls that cannot use the Global template NTP servers without impacting other template stacks, you should override a template value using a template stack variable. This approach allows you to change the IP address to a preferable server for this specific template stack while ensuring that other template stacks remain unaffected.
https://docs.paloaltonetworks.com/panorama/10-2/panorama-admin/panorama-overview/centralized-firewall-configuration-and-update-management/templates-and-template-stacks
I found another one that might help more. https://docs.paloaltonetworks.com/panorama/10-2/panorama-admin/manage-firewalls/manage-templates-and-template-stacks/configure-template-or-template-stack-variables
Option B Create a template or template stack variable to replace IP addresses, Group IDs, and interfaces in your configurations. Template variables are inherited by the template stack and you can override them to create a template stack variable https://docs.paloaltonetworks.com/panorama/10-2/panorama-admin/panorama-overview/centralized-firewall-configuration-and-update-management/templates-and-template-stacks
B: This exact scenario is at the end of the 1st paragraph. With the actions to accomplish (2 ways) in the bullets below the info box. https://docs.paloaltonetworks.com/panorama/11-0/panorama-admin/manage-firewalls/manage-templates-and-template-stacks/override-a-template-setting
Answer is B. There are two ways to override values pushed from a template or template stack. The first is to define a value locally on the firewall to override a value pushed from a template or template stack. The second is to define firewall-specific variables to override values pushed from a template or template stack.