Network, Infrastructure, and Security Controls

In cloud networks, access is controlled primarily through virtual networks and their associated networking resources. Cloud systems use virtual networks to enable communication between components inside a cloud. A virtual network is a networking system that emulates a physical network by combining the hardware and software network resources into a single entity. A virtual network contains network resources and capabilities including firewalls, virtual routers, load balancers, and network management.

In the cloud, virtual networks are managed via Software-Defined Networking (SDN). SDN is a category of technologies designed to allow virtualized networking functions that can be managed through software. SDN enables the creation of virtual networks by emulating physical firewalls, routers, and other networking devices used in traditional networks.

Deploying virtual networks on the cloud is fairly simple. New infrastructure can be quickly...