Which two valid components are used in installation of a VM-Series firewall in an OpenStack environment? (Choose two.)

VM-Series qcow2 image: The qcow2 image format is commonly used in OpenStack environments. The VM-Series firewalls are provided in the qcow2 format for compatibility with OpenStack.
Reference: Palo Alto Networks documentation states that for OpenStack environments, the VM- Series firewall is available in a qcow2 image format. Palo Alto Networks VM-Series Deployment Guide OpenStack heat template in YAML format: OpenStack Heat Orchestration Templates (HOT) are written in YAML. These templates define the infrastructure needed for deployment and can automate the deployment process.
Reference: OpenStack documentation specifies the use of YAML for heat templates, and Palo Alto Networks supports YAML format for ease of integration and automation. OpenStack Heat Documentation