Exploring the Virtual Network Environments
A virtual network is very similar to a physical network in many ways but, for the Security+ exam, we must know the concept of virtualization. To be able to host a virtual environment, we must install a hypervisor on a computer hosting the VMs. A hypervisor is software that runs on a virtual host that lets the host run virtual machines. There are two different types of hypervisor:
- Type 1 Hypervisor: This is an enterprise version that can be installed on a computer without an operating system, called bare metal. Examples are VMWare ESX, Microsoft's Hyper-V, or Zen, which is used by AWS.
- Type 2 Hypervisor: This needs an operating system, such as Server 2016 or Windows 10, and then the hypervisor is installed like an application. An example of a Type 2 hypervisor is Oracle's VM VirtualBox.
The main server in a virtual environment is called a host, and the VMs that it hosts are called guests. This is very similar to...