Please explain below in detail.

1. Identify and briefly describe the four types of communication traffic carried by business networks.

2.Contrast the major characteristics of WANs with those of LANs and MANs.

3.Do some online research on the characteristics of software as a service (SaaS), platform as a service (PaaS), and infrastructure as a service (IaaS). Explain short paper describing the differences between these services and identifying some of the major providers of each type.