In this chapter, we took a look at various types of virtualization technologies, from different types of hypervisors to deployment models, and the important benefits of using virtualization within an IT infrastructure. Be it a small or large organization, virtualization can improve IT efficiency and save on expenditures.
Furthermore, we saw how telecommunication providers are able to interconnect not just organizations and businesses but people too using various services and technologies together, either through physical cables or wireless technologies. By now, you should have a clear understanding of what takes place within a telecommunication provider's network and the various WAN services that exist and their characteristics.
In the next chapter, we will look at the aspects of business continuity and disaster recovery concepts, which will focus on ensuring the...