The two actions that can be performed for VM-Series firewall licensing by an orchestration system are:
Creating a license
Registering an authorization code
An orchestration system is a software tool that automates and coordinates complex tasks across multiple devices or platforms. An orchestration system can perform various actions for VM-Series firewall licensing by using the Palo Alto Networks Licensing API. The Licensing API is a RESTful API that allows programmatic control of license management for VM-Series firewalls. Creating a license is an action that can be performed for VM-Series firewall licensing by an orchestration system using the Licensing API. Creating a license involves generating a license key for a VM-Series firewall based on its CPU ID and the license type. Registering an authorization code is an action that can be performed for VM-Series firewall licensing by an orchestration system using the Licensing API. Registering an authorization code involves activating a license entitlement for a VM-Series firewall based on its authorization code and CPU ID. Renewing a license and downloading a content update are not actions that can be performed for VM-Series firewall licensing by an orchestration system using the Licensing API, but they are related tasks that can be done manually or through other methods. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Licensing API Overview], [Licensing API Reference Guide]

Threat Prevention and WildFire are the two subscriptions that provide protection against malware and lateral movement in a private data center. Threat Prevention blocks known threats using antivirus, anti-spyware, and vulnerability protection. WildFire analyzes unknown files and links in a cloud-based sandbox and generates signatures for new threats. Intelligent Traffic Offload is a feature that reduces the load on the firewall by offloading traffic that does not need inspection. SD-WAN is a feature that optimizes the performance and availability of WAN connections. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [Threat Prevention Datasheet], [WildFire Datasheet], [Intelligent Traffic Offload], [SD-WAN]

The two design options that address split brain when configuring high availability (HA) are:
Adding a backup HA1 interface
Using the heartbeat backup
Split brain is a condition that occurs when both firewalls in an HA pair assume the active role and start processing traffic independently, resulting in traffic duplication, policy inconsistency, or session disruption. Split brain can be caused by network failures, device failures, or configuration errors that prevent the firewalls from communicating their HA status and synchronizing their configurations and sessions. Adding a backup HA1 interface is a design option that addresses split brain when configuring HA. The HA1 interface is used for exchanging HA state information and configuration synchronization between the firewalls. Adding a backup HA1 interface provides redundancy and failover protection for the HA1 interface, ensuring that the firewalls can maintain their HA communication and avoid split brain. Using the heartbeat backup is a design option that addresses split brain when configuring HA. The heartbeat backup is a mechanism that allows the firewalls to send additional heartbeat messages through an alternate path, such as a management interface or a data interface, to verify the health of the peer firewall. Using the heartbeat backup prevents split brain caused by network failures or device failures that affect the primary HA interfaces. Bundling multiple interfaces in an aggregated interface group and assigning HA2, and sending heartbeats across the HA2 interfaces are not design options that address split brain when configuring HA, but they are related features that can enhance performance and reliability. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE), [High Availability Overview], [Configure HA Backup Links], [Configure Heartbeat Backup]

To configure a default route to an internet router, you need to select Network > Virtual Router, then select the default link to open the Virtual Router dialog. Then, select the Static Routes tab, then click Add. You can then specify the destination as 0.0.0.0/0 and the next hop as the IP address of the internet router1. Reference: Palo Alto Networks Certified Software Firewall Engineer (PCSFE)

CN-Series firewalls are licensed by data-plane vCPU. Data-plane vCPU is the number of virtual CPUs assigned to the data plane of the CN-Series firewall instance. The data plane is the part of the CN-Series firewall that processes network traffic and applies security policies. CN-Series firewalls are licensed by data-plane vCPU, which determines the performance and capacity of the CN-Series firewall instance, such as throughput, sessions, policies, rules, and features. CN-Series firewalls are not licensed by service-plane vCPU, management-plane vCPU, or control-plane vCPU, as those are not factors that affect the licensing cost or consumption of CN-Series firewalls. Reference: [Palo Alto Networks Certified Software Firewall Engineer (PCSFE)], [CN-Series Licensing], [CN-Series System Requirements], [CN-Series Architecture]