In this module, we will be covering virtual networks. GCP uses a software defined network, that is built on a global fiber infrastructure. This infrastructure makes GCP one of the world's largest and fastest networks. Thinking about resources as services instead of as hardware, will help you understand the options that are available, and their behavior. In this module, we start by introducing Virtual Private Cloud or VPC, which is Google's managed networking functionality, for Euro Cloud Platform resources. Then, we dissect networking into its fundamental components. Which are projects, networks, subnetworks, IP addresses, routes, and firewall rules, along with network pricing. Next, you will explore Google Cloud's network structure in a lab, by creating networks of many different varieties, and exploring the network relationships between them. After that, we will look at common network designs. This map represents Google Cloud. On a high level, Google Cloud consists of regions, which are the icons in blue, points of presence or PoPs, which are the dots in blue, a global private network, which is represented by the blue lines, and services. A region is a specific geographical location where you can run your resources. This map shows several regions that are currently operating, as well as future regions. Regions indicated with blue icons have three zones. Iowa is an exception, where the region called US-Central1 has four zones: US-Central1-A, US-Central1-B, US-Central1-C, and US-Central1-F. For up-to-date information on regions and zones, please refer to the documentation in the slides. The PoPs, are where Google's network is connected to the rest of the internet. Google Cloud can bring its traffic closer to its peers, because it operates an extensive global network of interconnection points. This reduces costs and provides users with a better experience. The network connects regions and PoPs, and is composed of a global network of fiber optic cables with several submarine cable investments. For more information about Google's networking infrastructure, please refer to these slides. Let's start by talking about GCPs network, and specifically Virtual Private Cloud or VPC.