To connect an on-premise data center to a cloud data center, a customer typically uses Site-to- Site VPN or Azure ExpressRoute.
Site-to-Site VPN provides a secure, encrypted connection over the internet between the on- premises network and the cloud network.
Azure ExpressRoute offers a private, dedicated connection to Azure from the on-premises data center, providing higher reliability, speed, and security compared to a standard VPN.
Both methods are commonly used for hybrid cloud connectivity, ensuring secure communication between on-premises and cloud environments.

The preferred methodology for deploying Check Point Security Management and CloudGuard Gateways in Azure is to use Azure Resource Manager (ARM). You would search in the Azure Marketplace for the relevant templates and deploy them using the ARM template in JSON format.
ARM templates are the standard method for deploying resources in Azure, providing an efficient, automated way to manage infrastructure as code.

Ansible is an open-source automation tool that utilizes Playbooks written in YAML (YAML Ain't Markup Language). These playbooks define the automation tasks, configurations, and orchestration steps in a human-readable format. Ansible is designed to simplify IT automation, configuration management, and deployment, and YAML is used because of its simplicity and readability.

According to secure Public Cloud guidelines, CloudGuard Security Gateways should reside in a hub subnet that does not contain any other virtual machines. This setup ensures that the security gateway can act as a central point to inspect and secure traffic between different network segments (such as between spokes, on-premises networks, and the internet) without interfering with the workloads hosted in other subnets or zones.