Comprehensive and Detailed In-Depth Step-by-Step Explanation:Palo Alto Networks uses a credit-based flexible licensing model (NGFW credits) for software firewalls, managed through deployment profiles in the Customer Support Portal. The Palo Alto Networks Systems Engineer Professional - Software Firewall documentation describes the characteristics of flex credit profiles within a credit pool.
Each VM-Series firewall deployment profile can be either fixed or flexible until defined and saved (Option A): In the Customer Support Portal, deployment profiles for VM-Series firewalls can start as undefined (neither fixed nor flexible) and are configured as either fixed (specific license allocation) or flexible (using NGFW credits) before saving. This flexibility allows customers to adjust profiles based on needs, a feature highlighted in the documentation for managing software firewalls efficiently.
Allocate credits for use with Cloud NGFW for AWS and Azure (Option D): NGFW credits from a credit pool can be allocated to deploy and manage Cloud NGFW instances in AWS and Azure, in addition to VM-Series and CN-Series. The documentation notes that flex credit profiles enable customers to dynamically allocate credits across different firewall types, including cloud-native firewalls, ensuring scalability and cost efficiency in public cloud environments.
Options B (All firewalls activated to a deployment profile will have the same subscriptions) and C (The number of licensed cores must match the number of provisioned CPU cores per instance) are incorrect. Firewalls in a deployment profile can have different subscriptions based on specific needs, not necessarily the same, making Option B inaccurate. For flexible licensing, the number of licensed cores (vCPUs) does not need to match provisioned CPU cores exactly; licensing tiers are based on performance levels (e.g., Tier 1, Tier 2), not a one-to-one match, so Option C is not a characteristic of flex credit profiles.
References: Palo Alto Networks Systems Engineer Professional - Software Firewall, Section: Flexible Licensing Management, NGFW Credits Documentation, Customer Support Portal Guide.