Cloud connectivity

There are various types of cloud services. The major ones are illustrated in the following diagram:

Figure 1.16 – Cloud-based services

Let's look at the cloud computing services mentioned in the preceding diagram in detail:

• Infrastructure as a Service (IaaS): These are cloud services that provide us with the hardware and VMs needed to run the environments. We only need to install, configure, and maintain operating systems, applications, data, and user access management when using IaaS.
• Platform as a Service (PaaS): These are cloud services that provide the platform – that is, the hardware and the operating system – so that the user can install their applications directly.
• Software as a Service (SaaS): These are cloud services that provide us with the necessary software so that we can connect to the software and work with it.

Now that we've covered the network structure and topologies, network virtualization and how it is implemented, and the different cloud service types and how we connect to the cloud, let's talk about the risks and what can go wrong in each part.